Activity Monitor Dock Icon - Memory - Missing

Why is the Memory option for the Activity Monitor Dock Icon missing now in Mavericks?
Why would Apple remove this feature?
I was happily using this little pie chart for a Dock Icon to keep track of overall memory usage on my system.
Has anyone else found a solution to bring this back?

Yes, thanks for the confirmation. I did some googling and found more people with eight-cores who could not view more than one bar in the dock icon.
I understand that showing eight bars in the icon might've been unreadable, but I would have preferred that they show two bars for the dual processors, instead of leaving us with one bar. I'll have to look into some alternate utilities, but it's a shame Apple decided to regress functionality on their top-end machines.

Similar Messages

Activity monitor dock icon in mavericks

I used to be able to show the Activity Monitor as a pie graph of memory usage in the dock icon. But in Mavericks I cannot figure out how to do that.
Help?

Yes, thanks for the confirmation. I did some googling and found more people with eight-cores who could not view more than one bar in the dock icon.
I understand that showing eight bars in the icon might've been unreadable, but I would have preferred that they show two bars for the dual processors, instead of leaving us with one bar. I'll have to look into some alternate utilities, but it's a shame Apple decided to regress functionality on their top-end machines.

Dock icons reflection missing-

Hi.
Today, I found something really weird going on on my iMac. As you can see in the screenshot, the Dock icons are missing the reflections… o_O
Any ideas how to get them back? I have tried almost everything… reboot, restore persmissions, fsck, deleting the preferences, etc. but nothing worked…
Thanks in advance.

Weird Slow Perf. - Activity Monitor - Dock Problem

I have a Powerbook G4 that's been running insanely slow. I went through the troubleshooting steps to fix this, and opened the Activity Monitor to see what's been sucking up all the processing power on the CPU. To my surprise, the Dock application is using 60 to 80% of my CPU at any given time. I know Mac doesn't get viruses, but... is this a virus?

Not in my experience. However, if the Dock is showing a lot of activity, then I suspect that you're running widgets. Click on the Dashboard icon and turn them off (easiest way is to open the Activity Monitor, select the Dock, and quit it).

Activity Monitor shows virtual memory usage is way too high

35 Gb of virtual memory for Safari, Mail, iTunes, Activity Monitor and all running processes!
Why these numbers are so high compared to Tiger? Can someone please explain? Is it a bug or something or is it the new way introduced with Leopard?
RAM and CPU usage looks fine though but this VM usage seems too high to me. I will run out of disk space after a couple of days of runtime. And the Adobe Creative Suite is not even running. Jeez...
Message was edited by: flec65

Thanks for the hint Niel.
The /private/var/vm folder is actually only 64 Mb. I can calm myself now...
(via Go menu in the Finder, select Go to Folder and type /private/var/vm to access it)
But why is Activity Monitor behaving like this in Leopard?

Activity Monitor - Column Heading Memory Types

I'm chasing a memory issue in my MBP, and am using Activity Monitor to try to figure it out. I've found explanations for "Wired", "Active", "Inactive", and "Free". Makes sense to me, no problemo.
Now comes the interesting part, trying to map processes to memory use. I've added all the available memory columns to Activity Monitor, but cannot find any correlation between the column headings and the memory reported in the bottom area/pie chart.
How do the Shared, Real, Private and Virtual Memory column headings map to the Wired, Active, Inactive and Free categories at the bottom?
There are plenty of explanations on what to be concerned about with the various pie chart categories. However, I'm trying to determine when an particular process is getting out of hand, and would like to understand what each of the column headings really mean, and in particular, how they map to the pie chart categories.

As Kappy says, the virtual memory information is mostly meaningless except to developers, and most of them do not really care.
In this case the Java VM usage is most likely a math error on the part of either the operating system, or Activity Monitor (when a 64-bit number goes negative, but is then displayed as an unsigned value, it can look like what you are seeing; ignore it).
What you ARE interested in is "Real Memory" usage, and who is using it. Look at those numbers in Activity Monitor.
If you want to see if pageout activity is affecting your performance, then start Applicaitons -> Utilities -> Terminal and run the command "sar -g 60 100" which will report pageout numbers once a minute for 100 minutes (adjust the numbers to suit your tastes). Mostly zero means no pages outs. Occassional spikes generally occur when starting an app or switching to an app which has been idle for awhile. Sustained pageouts starts to indicate a problem. High sustained pageouts means you could benefit from either having more RAM or running fewer concurrent applications.

Activity Monitor - Java Virtual Memory Use is 16,333.00 TB. How is this possible?

Activity Monitor: Virtual Memory column -
Java Real Memory @ 330 MB
Java Virtual Memory was 16,333 TB.
How could this be?
Running:
Safari
Mail
Pages
Activity Monitor open
Safari was incredibly slow today, as it has been a lot lately, but inconsistently. The other computers in the house had normal speed. I'm not a tech person. I attached a copy of the activity monitor - how it looks right now. I appreciate your thoughts and suggestions. Thank you.
bottom half

As Kappy says, the virtual memory information is mostly meaningless except to developers, and most of them do not really care.
In this case the Java VM usage is most likely a math error on the part of either the operating system, or Activity Monitor (when a 64-bit number goes negative, but is then displayed as an unsigned value, it can look like what you are seeing; ignore it).
What you ARE interested in is "Real Memory" usage, and who is using it. Look at those numbers in Activity Monitor.
If you want to see if pageout activity is affecting your performance, then start Applicaitons -> Utilities -> Terminal and run the command "sar -g 60 100" which will report pageout numbers once a minute for 100 minutes (adjust the numbers to suit your tastes). Mostly zero means no pages outs. Occassional spikes generally occur when starting an app or switching to an app which has been idle for awhile. Sustained pageouts starts to indicate a problem. High sustained pageouts means you could benefit from either having more RAM or running fewer concurrent applications.

Activity Monitor shows idle memory to be 80% or more

Hi. I'm using a 2009 model MacBook with 4GB of RAM and a 2.4 GHz Core 2 Duo Processor.
I've been having issues for quite a while now where even with just ONE program active, it will often lag, slow WAY down, or even flat out crash. Upon further inspection in the Activity Monitor, I discovered that the vast majority of the computer's memory -- at least 80% and up -- is marked as idle.
First: What does this mean?
Second: Is there any thing that can be done about the stated issues?
Thanks.

This Apple note will help with the definitions of each memory category: http://support.apple.com/kb/HT1342
See these FAQ to help with stated issues:
http://www.thexlab.com/faqs/performance.html
http://www.thexlab.com/faqs/sbbod.html

Failure to shut down & missing dock icons

2013 MBP & Yosemite 10.10.1
My MBP is regularly displaying the message "Safari (example) quit because of a problem" AND "your computer shut down because of a problem". The computer often becomes unresponsive following either of these messages. If I try and restart / shut down (depending on circumstances), the computer's screen darkens and continues to show the cursor, and the keyboard remains illuminated, but nothing else happens. I have to shut it down using the power on / off key. When I start it back up again, most of the dock icons are missing, although mousing along the dock shows the application names and the apps themselves are accessible from the dock.
Help appreciated!

Hi Linc. herewith the latest panic report. There are no crash reports listed. Thanks for your response.
RAX: 0xffffff7fa3602420, RBX: 0x0000000000002c77, RCX: 0x0000000000002d1c, RDX: 0x0000000000000019
RSP: 0xffffff820c4b3a30, RBP: 0xffffff820c4b3ac0, RSI: 0xffffff81c01e7268, RDI: 0x0000000000002d1c
R8: 0xffffff81c01e8268, R9: 0xffffff81c01e7a68, R10: 0x0000000000002b02, R11: 0xffffff81c01e8268
R12: 0xffffff81c01e7a68, R13: 0xffffff804310d000, R14: 0x000000000004b400, R15: 0x0000000000000000
RFL: 0x0000000000010282, RIP: 0xffffff7fa35eb27f, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff7fa360513c, Error code: 0x0000000000000000, Fault CPU: 0x6
Backtrace (CPU 6), Frame : Return Address
0xffffff820c4b36e0 : 0xffffff8020d3a811
0xffffff820c4b3760 : 0xffffff8020e1e80a
0xffffff820c4b3920 : 0xffffff8020e3a443
0xffffff820c4b3940 : 0xffffff7fa35eb27f
0xffffff820c4b3ac0 : 0xffffff7fa35eabc6
0xffffff820c4b3b20 : 0xffffff7fa35da254
0xffffff820c4b3b50 : 0xffffff7fa35d9dc3
0xffffff820c4b3c20 : 0xffffff7fa1b48c43
0xffffff820c4b3c60 : 0xffffff7fa1b360f0
0xffffff820c4b3ca0 : 0xffffff7fa1b33d8f
0xffffff820c4b3cb0 : 0xffffff7fa1b35e00
0xffffff820c4b3d50 : 0xffffff7fa1b35fdb
0xffffff820c4b3d70 : 0xffffff7fa1b3f6df
0xffffff820c4b3dc0 : 0xffffff7fa1b3f5f2
0xffffff820c4b3de0 : 0xffffff7fa1b3b5a2
0xffffff820c4b3e40 : 0xffffff7fa1b45899
0xffffff820c4b3e60 : 0xffffff7fa1b408aa
0xffffff820c4b3e90 : 0xffffff7fa1b3cc8a
0xffffff820c4b3ef0 : 0xffffff80212d7162
0xffffff820c4b3f40 : 0xffffff80212d507d
0xffffff820c4b3f80 : 0xffffff80212d5146
0xffffff820c4b3fb0 : 0xffffff8020e192c7
      Kernel Extensions in backtrace:
         com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0 xffffff7fa1b31000->0xffffff7fa1b6bfff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7fa1524000
         com.apple.driver.AppleIntelFramebufferCapri(10.0)[DF13C00D-FD32-3F5E-80CC-70979 7D84ED2]@0xffffff7fa35cd000->0xffffff7fa3604fff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[70E2B65E-A91A-3522-A1A0-79FD63EABB4C]@0xfffff f7fa2365000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7fa1524000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0 xffffff7fa1b31000
            dependency: com.apple.AppleGraphicsDeviceControl(3.7.21)[4700601D-3FEB-3B86-B2BA-8D71AF84D1 C4]@0xffffff7fa1b88000
            dependency: com.apple.iokit.IOAcceleratorFamily2(156.4)[20DDCE61-E3EC-3CC1-8B79-170CEF2B603 A]@0xffffff7fa2f70000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
14B25
Kernel version:
Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
Kernel slide:     0x0000000020a00000
Kernel text base: 0xffffff8020c00000
__HIB text base: 0xffffff8020b00000
System model name: MacBookPro10,1 (Mac-C3EC7CD22292981F)
System uptime in nanoseconds: 174465017256429
last loaded kext at 132062784305543: com.apple.iokit.SCSITaskUserClient 3.7.0 (addr 0xffffff7fa3a9f000, size 36864)
last unloaded kext at 150213585003982: com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2 (addr 0xffffff7fa3a8f000, size 49152)
loaded kexts:
com.Cycling74.driver.Soundflower 1.5.3
com.rim.driver.BlackBerryUSBDriverInt 0.0.67
com.apple.filesystems.smbfs 3.0.0
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.driver.ApplePlatformEnabler 2.1.0d1
com.apple.driver.AGPM 100.14.37
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AudioAUUC 1.70
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.3.1f2
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyDriver 267.0
com.apple.driver.AppleHDA 267.0
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.GeForce 10.0.0
com.apple.driver.AppleIntelHD4000Graphics 10.0.0
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.1f2
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleIntelFramebufferCapri 10.0.0
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleMuxControl 3.7.21
com.apple.driver.AppleMCCSControl 1.2.10
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.driver.AppleUSBHub 705.4.1
com.apple.iokit.IOAHCIBlockStorage 2.6.5
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AirPort.Brcm4360 901.19.10
com.apple.driver.AppleAHCIPort 3.0.7
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 705.4.14
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 267.0
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IOAudioFamily 200.6
com.apple.vecLib.kext 1.2.0
com.apple.nvidia.driver.NVDAGK100Hal 10.0.0
com.apple.nvidia.driver.NVDAResman 10.0.0
com.apple.iokit.IOSurface 97
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.1f2
com.apple.iokit.IOBluetoothFamily 4.3.1f2
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IOAcceleratorFamily2 156.4
com.apple.AppleGraphicsDeviceControl 3.7.21
com.apple.driver.AppleHDAController 267.0
com.apple.iokit.IOHDAFamily 267.0
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.IOPlatformPluginFamily 5.8.0d49
com.apple.driver.AppleGraphicsControl 3.7.21
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.CoreStorage 471
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.1
com.apple.iokit.IO80211Family 700.52
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.0
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 389.1
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.iokit.IOUSBMassStorageClass 3.7.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.0
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
com.apple.iokit.IOUSBFamily 705.4.14
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0
com.apple.kec.Libm 1
System Profile:
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xEF), Broadcom BCM43xx 1.0 (7.15.124.12.10)
Bluetooth: Version 4.3.1f2 15015, 3 services, 19 devices, 1 incoming serial ports
Thunderbolt Bus: MacBook Pro, Apple Inc., 23.4
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020
USB Device: Hub
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Hub
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Serial ATA Device: APPLE SSD SD512E, 500.28 GB
Model: MacBookPro10,1, BootROM MBP101.00EE.B05, 4 processors, Intel Core i7, 2.7 GHz, 16 GB, SMC 2.3f36
Network Service: Wi-Fi, AirPort, en0
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
Graphics: NVIDIA GeForce GT 650M, NVIDIA GeForce GT 650M, PCIe, 1024 MB

My dock icon missing?

My Excel for Mac dock icon is missing. The space or gap is there and I am able to open the app, except that for some reason there is no icon. All the other Office for Mac app like Windows and Power Point are good. I restarted and the icon is still missing. Is there any setting I can go to?
Thank you.

Dansyacht wrote:
Are you saying you have an invisible icon? If you can launch Excel by clicking on the "gap" try to right or control click and select Options > Remove from Dock. Now find Excel in the application folder and drag it to the dock. Does it show up now?
Thank you. Yes I did that. The first time it didn't work and was still invisible. It worked the second time.
My question now is how did that happened in the first place? Did I clicked on something to make it invisible?

Activity monitor never launch

When try to launch the activity monitor, the icon showed up in dock, and then disappeared.

Activity monitor is installed by default.
It looks like your Mac OS X installation is damaged. You appear to be missing some or all of the contents of the directory
/System/Library/PrivateFrameworks/GraphKit.framework/Versions/A/GraphKit
cited in the log.
This could be due to directory corruption or overall OS corruption:
1. Run the procedure specified in my "Resolving Disk, Permission, and Cache Corruption" FAQ. Perform the steps therein in the order specified. Be sure to write down any error messages encountered in Step 2 of the procedure.
2. If item 1 does not resolve the problem, perform an Archive and Install of Mac OS X. See my "General advice on performing an Archive and Install" FAQ. Perform the steps therein in the specified order.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

Problems running Activity Monitor - repairing privileges

Hello everyone,
My iBook had a strange moment, and I had to reinstall Mac OS X, which for me is still 10.3.9. However, I can no longer run Activity Monitor - the icon just bounces up and down a couple of times in the Dock, then vanishes. I've tried running it via a terminal, and received the following error message:
2007-09-18 13:16:34.841 Activity Monitor[10594] The tool is not setuid root - please repair the privileges
What is going on?
Thanks!
Liana

Hi
Welcome to Discussions.
Open Disk Utility, found in Application/Utilities, and click on Repair Permissions.
Then try to use Activity Monitor normally by clicking on its icon.
Message was edited by: roam

Activity monitor functionality, suspending tasks

Obviously, any process can be killed using Activity Monitor by pressing the big red icon in the upper left... but what about suspending a process? On the command line, it's CTRL-Z. I really wish there was a "pause" button in Activity Monitor. Am I missing something?
chris

You're not missing anything. It's just not possible to do that with Activity Monitor.
Feel free to submit a feature request to Apple.
Hope this helps...

MacPro sees 16g mem but Activity Monitor Only Shows 8 Gig

I have 4 simms of 4GB mem in my 2008 MacPro. I always thought all was ok as "About this Mac" shows 16GB of mem. But when I run Activity Monitor, the System Memory pie chart says I have 8GB. Is there another way to confirm how much mem is being recognized by my MacPro?
I only discovered this when running "icleanmemory" from the app store, and noticing I only ever have approximately 3GB free at any one time. Looks like my Mac is not seeing at least 8Gig of mem EVEN THOUGH "About this Mac" clearly shows 16GB.

And not just a reboot, but boot in Safe Mode.
Sometimes a clean install or reinstall over what you have, because a few people (a fraction of a fraction) had a system problem
Some background tasks dont' uninstall, not easily.
They get added to launch services and have to be removed through launchd
Heat is always an issue with RAM
Not showing up all the time with what it should be.... call it defective, call it marginal, have the vendor exchange and let them use more robust testng
FBDIMMs get subjected to heat, and heat-cool cycle stresses electronics
Keeping them below 72*C is important - I use Smcfancontrol 2.x
Riser releated issues
All 4 on one Riser?
Ideal is one set on each Riser
Swap al the Ram to first one andthen the other (the top Riser has to be populated and can't be left empty
Try with one pair, then the other and insure you get 8GB eachtime.
Narrowing it down to a pair, to Riser, to placement.
A common thread, DIMMs show but half capacity. Defective, gone bad.

Stupid Rainbow Ball/Activity Monitor

My computer has really been getting hung up a lot lately and it is driving me nuts. I have a 1.33 ghz powerbook g4 with 768 Ram. I am really new to troubleshooting this mac, so I'm not sure what to do. I have performed the disc utilities and mac janitor (which seemed to help slightly). However, it still gets hung up. For example, it just got caught on running word, firefox and activity monitor at once. This doesn't seem like it should be such a big deal!
I don't know if this is relevant, but according to activity monitor, under system memory, there is around 85 mb 'wired', 342 'active' and 278 'inactive', leaving me with 60 free mb (obviously much less if I open one more program). Does the inactive actually affect performance? If so, how do I fix this? Is 768 no longer enough memory to perform basic operations?
Thank you.

This Apple note tells you about each type of memory: http://docs.info.apple.com/article.html?artnum=107918
While in the activity monitor, on the system memory tab, note the page ins/outs. If page outs are 10% or greater of your page ins, you can use more memory for what you run. The numbers reset when you reboot.
I had issues with Safari using a gaggle of memory, so I switched to Firefox, which seems to be more behaved when using system resources.

Activity Monitor Dock Icon - Memory - Missing

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