IMac acting up

Hi there! I have a 2010 iMac with Snow Leopard and while I was surfing the web today (on firefox, which sometimes gives me trouble anway) and a black screen scrolled down and told me I needed to power off my computer. This is the report I got when I rebooted.
I've also had a error message lately about a system extension that can't be used called "/system/library/extensions/appleusbethernethost.kext" saying it was improperly installed and can't be used.
And in photoshop, recently I've been getting this one about the display driver saying it's disabled GPU enhancements and wants me to check the video card's manufacturer for an update.
I hope my iMac isn't just dying.
Interval Since Last Panic Report: 1698769 sec
Panics Since Last Report:          1
Anonymous UUID:                    341859F1-113A-4948-A050-2FC2B32E4B81
Sun Oct 19 19:06:25 2014
panic(cpu 0 caller 0x2abf6a): Kernel trap at 0x81e7a838, type 14=page fault, registers:
CR0: 0x80010033, CR2: 0x0000000c, CR3: 0x50bf6000, CR4: 0x00000660
EAX: 0x81f165c0, EBX: 0x0ecb5800, ECX: 0x00000000, EDX: 0x6bada000
CR2: 0x0000000c, EBP: 0x81713bf8, ESI: 0x00000000, EDI: 0x00000001
EFL: 0x00010246, EIP: 0x81e7a838, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000000
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x817139e8 : 0x21b837 (0x5dd7fc 0x81713a1c 0x223ce1 0x0)
0x81713a38 : 0x2abf6a (0x59e3d0 0x81e7a838 0xe 0x59e59a)
0x81713b18 : 0x2a1a78 (0x81713b30 0x1 0x81713bf8 0x81e7a838)
0x81713b28 : 0x81e7a838 (0xe 0xf290048 0x81710010 0x10)
0x81713bf8 : 0x81eab8ab (0x6bada000 0x0 0x0 0x0)
0x81713c48 : 0x81eb5f43 (0x6bada000 0x0 0x0 0x0)
0x81713c88 : 0x81ef0394 (0xdde3800 0x0 0x81713cd8 0x6c086000)
0x81713ca8 : 0x81ebdac6 (0xdde3800 0x0 0x81713cd8 0x5444bb)
0x81713ce8 : 0x81ef3d14 (0x6c086000 0x6bada000 0x81713d38 0x6c086000)
0x81713d08 : 0x81e7df85 (0x6c086000 0x6bada000 0x81713d38 0xc)
0x81713d38 : 0x53e5df (0x6bada000 0xd4781f4 0xd4781f4 0x1)
0x81713d88 : 0x56f222 (0x6bada000 0xd4781f4 0xd4781f4 0x1)
0x81713de8 : 0x286c9e (0x6bada000 0xd4781f4 0x1 0x0)
0x81713e58 : 0x21dbe5 (0x10ece568 0x17712884 0x10ece56c 0x10ece5a4)
0x81713e98 : 0x210a86 (0x10ece500 0x81713edc 0xcbf2148 0x81713ed0)
0x81713ef8 : 0x216f84 (0x10ece500 0x0 0x0 0x0)
0x81713f78 : 0x295c57 (0x17496608 0x0 0x0 0x0)
0x81713fc8 : 0x2a256d (0x17496604 0x0 0x10 0x17496604)
      Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.3.6)@0x81e79000->0x81f2ffff
            dependency: com.apple.NVDAResman(6.3.6)@0x821b0000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x81817000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a6aa000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x817f5000
BSD process name corresponding to current thread: plugin-container
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: iMac9,1 (Mac-F2218FA9)
System uptime in nanoseconds: 128902210277608
unloaded kexts:
com.apple.driver.AppleFileSystemDriver    2.0 (addr 0x80eec000, size 0x12288) - last unloaded 277360014383
loaded kexts:
com.rogueamoeba.InstantOnCore    6.0.3
com.sophos.kext.sav    9.1.5
com.sophos.nke.swi    9.1.0
com.rogueamoeba.InstantOn    6.0.3
com.apple.filesystems.msdosfs    1.6.3 - last loaded 153919749900
com.apple.driver.AppleHWSensor    1.9.3d0
com.apple.driver.AGPM    100.12.31
com.apple.driver.AudioAUUC    1.57
com.apple.driver.AppleMikeyHIDDriver    1.2.0
com.apple.driver.AppleIntelPenrynProfile    17
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AppleMikeyDriver    2.0.5f14
com.apple.driver.AppleUpstreamUserClient    3.5.7
com.apple.driver.AppleHDA    2.0.5f14
com.apple.driver.AudioIPCDriver    1.1.6
com.apple.driver.AppleMCCSControl    1.0.20
com.apple.nvenet    2.0.17
com.apple.driver.AppleBacklight    170.0.46
com.apple.driver.AirPortBrcm43224    428.42.4
com.apple.driver.ACPI_SMC_PlatformPlugin    4.7.0a1
com.apple.driver.AppleLPC    1.5.1
com.apple.GeForce    6.3.6
com.apple.filesystems.autofs    2.1.0
com.apple.driver.AppleIRController    303.8
com.apple.iokit.SCSITaskUserClient    2.6.8
com.apple.iokit.IOAHCIBlockStorage    1.6.4
com.apple.driver.AppleFWOHCI    4.7.3
com.apple.BootCache    31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.driver.AppleUSBHub    4.2.4
com.apple.driver.AppleAHCIPort    2.1.7
com.apple.driver.AppleUSBEHCI    4.2.4
com.apple.driver.AppleUSBOHCI    4.2.0
com.apple.driver.AppleEFINVRAM    1.4.0
com.apple.driver.AppleRTC    1.3.1
com.apple.driver.AppleHPET    1.5
com.apple.driver.AppleACPIButtons    1.3.6
com.apple.driver.AppleSMBIOS    1.7
com.apple.driver.AppleACPIEC    1.3.6
com.apple.driver.AppleAPIC    1.4
com.apple.driver.AppleIntelCPUPowerManagementClient    142.6.0
com.apple.security.sandbox    1
com.apple.security.quarantine    0
com.apple.nke.applicationfirewall    2.1.14
com.apple.driver.AppleIntelCPUPowerManagement    142.6.0
com.apple.driver.AppleProfileReadCounterAction    17
com.apple.driver.AppleProfileTimestampAction    10
com.apple.driver.AppleProfileThreadInfoAction    14
com.apple.driver.AppleProfileRegisterStateAction    10
com.apple.driver.AppleProfileKEventAction    10
com.apple.driver.AppleProfileCallstackAction    20
com.apple.iokit.IOSurface    74.2
com.apple.iokit.IOBluetoothSerialManager    2.4.5f3
com.apple.iokit.IOSerialFamily    10.0.3
com.apple.driver.DspFuncLib    2.0.5f14
com.apple.iokit.IOAudioFamily    1.8.3fc2
com.apple.kext.OSvKernDSPLib    1.3
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.driver.AppleHDAController    2.0.5f14
com.apple.iokit.IOHDAFamily    2.0.5f14
com.apple.driver.AppleBacklightExpert    1.0.1
com.apple.iokit.IOFireWireIP    2.0.3
com.apple.iokit.AppleProfileFamily    41
com.apple.iokit.IO80211Family    320.1
com.apple.iokit.IONetworkingFamily    1.10
com.apple.driver.NVSMU    2.2.7
com.apple.driver.AppleSMC    3.1.0d5
com.apple.driver.IOPlatformPluginFamily    4.7.0a1
com.apple.driver.AppleSMBusPCI    1.0.10d0
com.apple.nvidia.nv50hal    6.3.6
com.apple.NVDAResman    6.3.6
com.apple.iokit.IONDRVSupport    2.2.1
com.apple.iokit.IOGraphicsFamily    2.2.1
com.apple.driver.BroadcomUSBBluetoothHCIController    2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController    2.4.5f3
com.apple.iokit.IOBluetoothFamily    2.4.5f3
com.apple.driver.AppleUSBHIDKeyboard    141.5
com.apple.driver.AppleHIDKeyboard    141.5
com.apple.iokit.IOUSBHIDDriver    4.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice    2.6.8
com.apple.iokit.IOUSBMassStorageClass    2.6.7
com.apple.driver.AppleUSBMergeNub    4.2.4
com.apple.driver.AppleUSBComposite    3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice    2.6.8
com.apple.iokit.IOBDStorageFamily    1.6
com.apple.iokit.IODVDStorageFamily    1.6
com.apple.iokit.IOCDStorageFamily    1.6.1
com.apple.iokit.IOAHCISerialATAPI    1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily    2.6.8
com.apple.driver.XsanFilter    402.1
com.apple.iokit.IOFireWireFamily    4.2.6
com.apple.iokit.IOUSBUserClient    4.2.4
com.apple.iokit.IOAHCIFamily    2.0.6
com.apple.iokit.IOUSBFamily    4.2.4
com.apple.driver.AppleEFIRuntime    1.4.0
com.apple.iokit.IOHIDFamily    1.6.6
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.TMSafetyNet    6
com.apple.kext.AppleMat

And it just happened again a few minutes ago. Is there something major wrong?
Interval Since Last Panic Report: 268533 sec
Panics Since Last Report:          1
Anonymous UUID:                    341859F1-113A-4948-A050-2FC2B32E4B81
Thu Oct 30 21:55:48 2014
panic(cpu 1 caller 0x2abf6a): Kernel trap at 0x81c502bc, type 14=page fault, registers:
CR0: 0x80010033, CR2: 0xc4adb0d4, CR3: 0x9597c000, CR4: 0x00000660
EAX: 0xc4adb0d4, EBX: 0x6c0ca000, ECX: 0xc4adb0d4, EDX: 0x81c7ae60
CR2: 0xc4adb0d4, EBP: 0x9827a898, ESI: 0x00000000, EDI: 0x00000000
EFL: 0x00010246, EIP: 0x81c502bc, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000002
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x9827a6b8 : 0x21b837 (0x5dd7fc 0x9827a6ec 0x223ce1 0x0)
0x9827a708 : 0x2abf6a (0x59e3d0 0x81c502bc 0xe 0x59e59a)
0x9827a7e8 : 0x2a1a78 (0x9827a800 0x18453800 0x9827a898 0x81c502bc)
0x9827a7f8 : 0x81c502bc (0xe 0x48 0x21060010 0x10)
0x9827a898 : 0x81c192f6 (0x6c0ca000 0xc4adb0d4 0x0 0x0)
0x9827a8e8 : 0x81c191a1 (0x6c0ca000 0x6c0ca788 0x1 0x0)
0x9827a908 : 0x81be088f (0x6c0ca000 0x6c0ca788 0x1 0x1)
0x9827a938 : 0x81c1ac64 (0x6c0ca000 0x9827aa7c 0x0 0x6c0ca000)
0x9827a978 : 0x81be4c93 (0x6c0ca000 0x9827aa7c 0xc4 0x6ba46000)
0x9827aab8 : 0x81c1e5d8 (0x6c0ca000 0x1 0x9827abcc 0x9827abc8)
0x9827ab68 : 0x81be0fe1 (0x6c0ca000 0x1 0x9827abcc 0x9827abc8)
0x9827abe8 : 0x56da06 (0x6c0ca000 0x0 0x9827ae3c 0x9827ac74)
0x9827ac38 : 0x56e2a5 (0x81c6f720 0x6c0ca000 0xca8ea88 0x1)
0x9827ac88 : 0x56eb59 (0x6c0ca000 0x10 0x9827acd0 0x0)
0x9827ada8 : 0x286638 (0x6c0ca000 0x10 0xca8ea88 0x1)
0x9827be58 : 0x21dbe5 (0xca8ea60 0x17c1f5a0 0x2b98 0x1a2013)
0x9827be98 : 0x210a86 (0xca8ea00 0x0 0x18987810 0xe6860e0)
0x9827bef8 : 0x216f84 (0xca8ea00 0x0 0x0 0x0)
0x9827bf78 : 0x295c57 (0xe9d90e8 0x0 0x0 0x0)
0x9827bfc8 : 0x2a256d (0xe9d90e4 0x0 0x10 0xe9d90e4)
      Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.3.6)@0x81bd5000->0x81c8bfff
            dependency: com.apple.NVDAResman(6.3.6)@0x826b0000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x81624000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a6aa000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x817c7000
BSD process name corresponding to current thread: plugin-container
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: iMac9,1 (Mac-F2218FA9)
System uptime in nanoseconds: 30880135469463
unloaded kexts:
com.apple.driver.AppleFileSystemDriver    2.0 (addr 0x7a965000, size 0x12288) - last unloaded 118276821184
loaded kexts:
com.tuxera.filesystems.tufsfs.fusefs_txantfs    2012.4.17 - last loaded 71321778596
com.rogueamoeba.InstantOnCore    6.0.3
com.rogueamoeba.InstantOn    6.0.3
com.apple.filesystems.msdosfs    1.6.3
com.apple.driver.AppleHWSensor    1.9.3d0
com.apple.driver.AGPM    100.12.31
com.apple.driver.AudioAUUC    1.57
com.apple.driver.AppleMikeyHIDDriver    1.2.0
com.apple.driver.AppleMikeyDriver    2.0.5f14
com.apple.driver.AppleUpstreamUserClient    3.5.7
com.apple.driver.AppleHDA    2.0.5f14
com.apple.driver.AppleIntelPenrynProfile    17
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AppleMCCSControl    1.0.20
com.apple.nvenet    2.0.17
com.apple.driver.AudioIPCDriver    1.1.6
com.apple.driver.AppleBacklight    170.0.46
com.apple.GeForce    6.3.6
com.apple.driver.AirPortBrcm43224    428.42.4
com.apple.driver.ACPI_SMC_PlatformPlugin    4.7.0a1
com.apple.driver.AppleLPC    1.5.1
com.apple.filesystems.autofs    2.1.0
com.apple.driver.AppleIRController    303.8
com.apple.iokit.SCSITaskUserClient    2.6.8
com.apple.iokit.IOAHCIBlockStorage    1.6.4
com.apple.driver.AppleFWOHCI    4.7.3
com.apple.BootCache    31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.driver.AppleAHCIPort    2.1.7
com.apple.driver.AppleEFINVRAM    1.4.0
com.apple.driver.AppleUSBHub    4.2.4
com.apple.driver.AppleUSBEHCI    4.2.4
com.apple.driver.AppleUSBOHCI    4.2.0
com.apple.driver.AppleRTC    1.3.1
com.apple.driver.AppleHPET    1.5
com.apple.driver.AppleACPIButtons    1.3.6
com.apple.driver.AppleSMBIOS    1.7
com.apple.driver.AppleACPIEC    1.3.6
com.apple.driver.AppleAPIC    1.4
com.apple.driver.AppleIntelCPUPowerManagementClient    142.6.0
com.apple.security.sandbox    1
com.apple.security.quarantine    0
com.apple.nke.applicationfirewall    2.1.14
com.apple.driver.AppleIntelCPUPowerManagement    142.6.0
com.apple.driver.AppleProfileReadCounterAction    17
com.apple.driver.AppleProfileTimestampAction    10
com.apple.driver.AppleProfileThreadInfoAction    14
com.apple.driver.AppleProfileRegisterStateAction    10
com.apple.driver.AppleProfileKEventAction    10
com.apple.driver.AppleProfileCallstackAction    20
com.apple.iokit.IOSurface    74.2
com.apple.iokit.IOBluetoothSerialManager    2.4.5f3
com.apple.iokit.IOSerialFamily    10.0.3
com.apple.driver.DspFuncLib    2.0.5f14
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.driver.AppleHDAController    2.0.5f14
com.apple.iokit.IOHDAFamily    2.0.5f14
com.apple.iokit.IOAudioFamily    1.8.3fc2
com.apple.kext.OSvKernDSPLib    1.3
com.apple.driver.AppleSMBusPCI    1.0.10d0
com.apple.driver.AppleBacklightExpert    1.0.1
com.apple.nvidia.nv50hal    6.3.6
com.apple.iokit.IOFireWireIP    2.0.3
com.apple.NVDAResman    6.3.6
com.apple.iokit.IONDRVSupport    2.2.1
com.apple.iokit.IOGraphicsFamily    2.2.1
com.apple.iokit.IO80211Family    320.1
com.apple.iokit.IONetworkingFamily    1.10
com.apple.driver.NVSMU    2.2.7
com.apple.driver.AppleSMC    3.1.0d5
com.apple.driver.IOPlatformPluginFamily    4.7.0a1
com.apple.iokit.AppleProfileFamily    41
com.apple.driver.AppleUSBHIDKeyboard    141.5
com.apple.driver.AppleHIDKeyboard    141.5
com.apple.iokit.IOUSBHIDDriver    4.2.0
com.apple.driver.BroadcomUSBBluetoothHCIController    2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController    2.4.5f3
com.apple.iokit.IOBluetoothFamily    2.4.5f3
com.apple.driver.AppleUSBMergeNub    4.2.4
com.apple.iokit.IOSCSIBlockCommandsDevice    2.6.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice    2.6.8
com.apple.iokit.IOBDStorageFamily    1.6
com.apple.iokit.IODVDStorageFamily    1.6
com.apple.iokit.IOCDStorageFamily    1.6.1
com.apple.iokit.IOUSBMassStorageClass    2.6.7
com.apple.driver.AppleUSBComposite    3.9.0
com.apple.iokit.IOAHCISerialATAPI    1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily    2.6.8
com.apple.driver.XsanFilter    402.1
com.apple.iokit.IOFireWireFamily    4.2.6
com.apple.iokit.IOAHCIFamily    2.0.6
com.apple.iokit.IOUSBUserClient    4.2.4
com.apple.iokit.IOUSBFamily    4.2.4
com.apple.driver.AppleEFIRuntime    1.4.0
com.apple.iokit.IOHIDFamily    1.6.6
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.TMSafetyNet    6
com.apple.kext.AppleMatch    1.0.0d1
com.apple.driver.DiskImages    289
com.apple.iokit.IOStorageFamily    1.6.3
com.apple.driver.AppleACPIPlatform    1.3.6
com.apple.iokit.IOPCIFamily    2.6.5
com.apple.iokit.IOACPIFamily    1.3.0
Model: iMac9,1, BootROM IM91.008D.B08, 2 processors, Intel Core 2 Duo, 2.66 GHz, 8 GB, SMC 1.45f0
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 12 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HDT721064SLA360, 596.17 GB
Serial ATA Device: OPTIARC DVD RW AD-5670S
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0x24400000 / 3
USB Device: External USB 3.0, 0x0480 (Toshiba America Info. Systems, Inc.), 0xa007, 0x24100000 / 2
USB Device: Keyboard Hub, 0x05ac (Apple Inc.), 0x1006, 0x26400000 / 3
USB Device: Apple Keyboard, 0x05ac (Apple Inc.), 0x024f, 0x26420000 / 4
USB Device: External HDD, 0x1058 (Western Digital Technologies, Inc.), 0x0903, 0x26200000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x04500000 / 3
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc52f, 0x04300000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8215, 0x06110000 / 3

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Well, some info, maybe more than you nedd, but...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

IMac acting strange... restarts randomly, difficult to start...

My iMac has been acting very weird lately.
It started with random restarts when I was not even standing by the computer. It has been freezing frequently also.
Lately it has restarted and I heard the initial start up noise for a quick second and than it restarted again. This happened about 20 times before the computer actually booted.
If anyone else is having these problems please let me know. I have no idea whats going on :S

Hello Philip
Reset your iMac's SMC (System Management Controller) exactly as described in the "how to" link below.
http://docs.info.apple.com/article.html?artnum=303446-en
Then if you are still have a power issue, you should take it in for service.
Dennis

Imac acting really wierd!

I'm back for more advice. Just when I thought I had the silly thing fixed after the "sleep" issue after doing the update... Now something really weird is going on. Sunday night, our power went out for a max of 2 seconds. The computer and everything with it is on a surge protector. iMac was asleep at the time. When we went to wake it up yesterday, it wouldn't wake up! We held the power button and finally it came on, but it was running incredibly slow. We tried to get online, but iMac said that we didn't have an internet connection. We have DSL. I tried everything on the silly machine and nothing would work. It wouldn't let me put it to sleep, shut down, change users (so I could run my "test" account). All I ever got was the dreaded bouncing beach ball. To make a long story short, I decided my only option after trying disk repairs, etc.. was to an "archive and install". I did that and the darn computer still was doing the same exact thing!! I couldn't put it to sleep, shut it down, switch users, anything! I couldn't even pull up my system information so I could call Apple!
Today, I drug my iMac to work with me, thinking that I could call Apple and have the mac right here and still use my PC work computer. I turned on my mac and low and behold, it works perfectly! It's like yesterday never happened! It goes to sleep, wakes up, shuts down, does all of the tests (which were negative). What gives??
My questions are: What could have happened? Could my power strip be bad, but not bad enough to completely quit working? Could my DSL modem be acting up and making my mac act crazy? I thought that when I get home from work today, I will plug the mac into a seperate outlet and then re-set the modem. I will then hook the modem into my airport express and see what happens. What do you think? Thank you!!
iMac G5 PowerMac 12.1 Power PC G5 (3.0) Mac OS X (10.4.7) 1.9 GHz, 1gb

Hi nuttysami123,
You probably did a variation of the SMU reset, check out the link...
I had my power go out last night briefly and could not reconnect to the internet. What happened was I had changed the "master" password on my account, when power and DSL came back on, the DSL account did not recognize the username with my new password. I had to reset DSL router to recognize my new password and like your magical Mac, my internet connection came back... Rick
iMac G5 iSight 20" - 30G iPOD in Slimming Black - Mac OS X (10.4.7) - HP Pav 15" WS and Toshiba Sat 17" WS LP's - Canon 20D & A620

Imac acting funny/crash and weird lines

my imac g5 is acting funny...when i wake it from a sleep it freezes, mouse and all...after a restart the screen gets scrambled with lines..then i have to shut down and restart all over again...sometimes it's o.k.sometimes it does nothing or ..but sometimes when i go to open ,say safari or mail program it freezes again! I ran a diagnostic and it said it was o.k...so ..I dont know WHAT to think...Zap the PRAM?
my warrenty, conviently is past ...sigh....
anyone else have this happen...it also had an issue recognizing a disk when i put it in!
thanks!

Hello Pattycakes:
Welcome to Apple discussions.
If you have a so-called first generation Imac, read the link below. Apple has an extended repair/warranty period for imacs that fall into the indicated serial number ranges.
http://www.apple.com/support/imac/repairextensionprogram/
Barry

Imac acting weird slow

recently my imac has been acting slow. I took it to apple, and they did not find any hardware issues, but did see the same issues I have been having -
app icons not shoeing up.
Apps freezing
Apps not responding
Backup discs not showing up on screen.
Many many permission errors on my main HDD.
They ended up keeping my imac and resetting it. Reloading OSX Maverick, and sending me home to reload all of my stuff.
I did not restore from backup as I feared loading the same issue back on it. Instead I reloaded all my software new from disc, drag and dropped all my photos back into iphoto (25,000) ... and so on and so forth.
Now, a month later, Im having similar issues again.
I am so bummed. I had an older intel imac and never had any of these issues... now i have a newer 2.7 i5, 8GB Ram, 1TB HDD... and it should be better faster and stronger... but here I am.
I am an apple diehard, and wont give up, but I need help.
HELP....
Mike - Prostreetmike

First, back up all data immediately unless you already have a current backup. If you can't back up, stop here. Do not take any of the steps below.
Step 1
This diagnostic procedure will query the log for messages that may indicate a system issue. It changes nothing, and therefore will not, in itself, solve your problem.
If you have more than one user account, these instructions must be carried out as an administrator.
Triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|pagin|timed? ?o' | tail | awk '/:/{$4=""; print}' | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. Normally the command will produce no output, and the window will be empty. If the TextEdit window (not the Terminal window) has anything in it, stop here and post it — the text, please, not a screenshot. The title of the TextEdit window doesn't matter, and you don't need to post that.
Step 2
There are a few other possible causes of generalized slow performance that you can rule out easily.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Reset the System Management Controller.
Run Software Update. If there's a firmware update, install it.
If you're booting from an aftermarket SSD, see whether there's a firmware update for it.
If you have a portable computer, check the cycle count of the battery. It may be due for replacement.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane. See whether there's any change.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
If you have a MacBook Pro with dual graphics, disable automatic graphics switching in the Energy Saverpreference pane for better performance at the cost of shorter battery life.
Step 3
When you notice the problem, launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the View menu or the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for User, System, and Idle at the bottom of the window.
Select the Memory tab. What value is shown in the bottom part of the window for Swap used?
Next, select the Disk tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in andWrites out.)
Step 4
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard by pressing the key combinationcommand-C. Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

Help! iTunes is making my iMac act like a Windows machine!

Here is the basic problem:
Some songs will not play properly in iTunes, pausing often and causing the spinning beach ball of death to freeze my iMac for 5 to 10 minutes at a time, sometimes longer. I am also having problems ripping those songs to a CD.
I am trying to decide if I should uninstall iTunes or simply back everything up and do a clean install of Snow Leopard and iTunes.
I’m also wondering if simply getting more RAM would solve my woes. I have 2GB, which worked well for years. I have 4GB coming in the mail.
I have a 2008 iMac. It has about 175GB of free space on its hard drive, about 144 GB in use. With iTunes playing a file and nothing of particular note open, it has just under 1GB of free system memory, or RAM. I have both the latest version of Snow Leopard and iTunes installed. All software is up to date. Except, of course, that I'm not running Lion.
I have a 45GB in music and 54GB in podcasts in my iTunes library.
I have corrected my hard drive’s permissions repeatedly but am unaware of any other maintenance I should be doing on my hard drive.
Here are some observations that may or may not be helpful:
Songs in the same folder are behaving differently, some consistently playing without a problem, others consistently spinning the beach ball. For example, five songs off an album will freeze up my iMac but the album’s other songs do not.
I can, however, duplicate the symptoms with otherwise dependable songs by having more applications open. Nothing major, say Safari, Finder and iTunes. What I don’t get is why some songs would play well and others not when only iTunes is open.
Having a handful of applications open now sometimes prompts the spinning beach ball of death. This never used to happen, hence the RAM coming in the mail.
When I check information on the malfunctioning music files, it shows they contain data, but I start getting the beach ball checking the file’s “sharing & permissions” status in "Get Info."
Interestingly, I recently had to stop backing up my podcasts in Time Machine because some of them were crashing it. My music files, however, have been backing up fine in Time Machine, so far.
Also, when I try to copy my music files onto an external drive or my desk top – in anticipation of reinstalling iTunes -- my iMac cites error 36 and stops the process.
My iMac’s performace problems started to occur before I finally updated to Snow Leopard a few months ago. Indeed, I thought updating would solve them.
I had been regularly updating iTunes, however, I recall reading somewhere that upgrading to Snow Leopard while having an up-to-date iTunes installed might cause problems.
There you have it. Any advice or insights would he most welcome.

Well, I seem to have solved my own problem. Do I get 10 points, I wonder? It appears that my poor iMac was in desperate need of a masssive cleaning. Thanks to other posts here and elsewhere, I found out about Cocktail, a free download -- unless you chip in for the more advanced version. This is a powerful and easy to understand tool. I used it to perk my iMac up to a level I have not seen in a LONG time. The spinning beach ball of death must go play elsewhere. Among other things, I cleared out all my caches, eliminated a ton of foreign languages and did several repairs, including tracking down and killing a corrupted permission. It also taught me how to tap into my computer's activity logs and gave me other useful insights. GOOD stuff. I did other things not related to Cocktail to free up processing power -- such as turning off file- size view option in Finder -- but Cocktail is what solved this problem. As I type this, I am happily listening to songs that earlier would not play. What a relief. I am now especially looking forward to that new RAM. We'll be blazing fast then, by gum.

Why are windows and desktop on iMac acting wonky?

t's raining out and that may or may not have something to do with the fact that for the first time (after 20 years of owning a Mac), the Document window and Mail window (both which were open at the same time) were doing a jig, moving too the right a little ways, then back again. It made it impossible to delete or move emails. The windows did this completely on their own. This is quite disconcerting.
And, on the same subject, perhaps, for the last few weeks, at times my mouse (corded) is acting as if I'm clicking on the left-hand side so all open windows become small and I have to click on a window to continue working on my document. It does this on its own without me necessarily using the mouse.
And last, but not least, earlier this morning I went to turn off the computer and was about to click on the dialogue box that asks if I want to turn off the computer now or wait 58 seconds, when the desktop turned black, then back to normal, then black and it didn't allow me to click on the blue box. This black and normal switch went on for a minute or two, then the computer turned itself off.

I can't open them without buying software when the same emails on my iPhone have the attachment as a PDF and open? Thanks
Acrobat PDF files open with Preview which is already installed on the Mac.

Imac acting really strange

sometimes when i am on my imac it's starts to do like it clicking constantly on he spacebar or enter button. ik i click then on in my top bar with safari , file , edit than if click on it and i don't hold in goes imidiatly away , also if i am on microsoft messenger if i am in chattext if i want to type it keeps pressing enter after i typed one letter or it keep pressing spacebaar so that if i type al the sentences are from apart. Could anyone help??

Welcome to Discussions - have you tried booting from your install disc and using Disk Utility?
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk
Then, boot back to your internal drive and try to repair permissions.
Please post back with results.

IMac acting strange now won't start only 3 months old

This has just happened. Whilst doing some encoding a message suddenly appeared saying I had to restart. Everything had sort of froze. So I restart and get to the apple logo but then a grey screen comes down saying restart again and big lines of code appear.
Straight away booked in for genius appointment but that's not till wednesday. Anyone know what's happened?it's a 24" iMac. 4 g ram. Only 4 months old.
Before this I've noticed other little things like apps not responding and the famous beachball. Not to good for a £1200 mac!!!

Anyone know what's happened?
There would be no way anyone here would know.
Not to good for a £1200 mac!!!
Technology is far from perfect. Then take it in for warranty repair.

IMac acting erratically

My iMac is early 2008 and up to date with all the latest software & firmware other than mountain Lion. It has always been reliable and I treat it with respect, until lately when whatever application or window I had open would suddenly freeze with everything becoming tinged in pink. I couldn't close or force close anything so the only solution was to reboot when I would get a half hour or so use before it happened again. It became very difficult to start up and proceed to the desk top and now will not get past the initial grey screen with the rotating cog, which when it stops does will not open the next blank screen before continuing to the desk top, but I can hear my log in items opening up as usual and the fan comes on OK. When the problems first started I ran the usual checks though Disk Utility and also the Hardware check and everything was passed in good working order. I have attempted booting from the install disk and my Time Machine external hard drive and various other forced boot ups, but nothing helps. If I do manage to get to the desk top I will probably do a complete reinstall erasing the hard drive. I'm using my old iBook for now but would like to get the iMac working again. Thanks for any advice.

Make a "Genius" appointment at an Apple Store to have the machine tested.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to bare metal from any of them.) Don’t erase the recovery partition, if present.
*An SSD doesn't need to be zeroed.
If you want to preserve the data on the internal drive(s), you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data, you can skip this step.
There are several ways to back up a Mac that is unable to fully boot. You need an external hard drive to hold the backup data.
1. Boot into Recovery (command-R at startup) or from a local Time Machine backup volume (option key at startup.) Launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
How to back up and restore your files
2. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
How to use and troubleshoot FireWire target disk mode
3. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

IMac acting up

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