17" iMac Core 2 Duo - boot problems - 10.6.8

On startup it gets to the solid blue screen and stops. I can put it to sleep by momentarily pushing the power button, then clicking the mouse to wake it. When it wakes, I get the desktop display, but nothing responds. If I insert a DVD or CD in the optical drive, that gets the machine to start responding normally.
I've started up from the OS disk (10.6.3) and repaired the disk and permissions. The disk initially showed some problems, but now passes the test.
I leave the thing on all the time now because of the boot snafus, but I would like to solve this issue somehow.

You should try a reboot now that you've unplugged the external drive. A bad external drive can shutdown the startup process. By the way:
As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
Also, the hardest thing your iMac does is startup, let it sleep, you'll get more life out of it, honestly.

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I thought it might have something to do with the quality of the power signal in my house, but my mac is attached to a fully-operational (battery in good condition) backups with line conditioning.
I'm concerned that something on the logic board might be overheating...could this cause the power-on issues I'm seeing.
Another symptom that I'm not sure is related is that upon launching photo booth, my camera never turns on and eventually I get an error that the camera is in use when it clearly isn't.
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A few things come to mind at this point:
1. Is your Firmware the correct version for your model? Use the link below to check!
Mac OS X: Firmware Updates for Intel-based Macs
2. The Hardware Test on the Install disk 1
Intel-based Macs: Starting up into Apple Hardware Test
3. TechTool Deluxe if you have Apple Care?
Apple Care

Imac Core Duo Crashing ......A Cry For Help

I received my eagerly awaited iMac core duo 17' 160gb. I took it out of the box and it work away fine. When I was installing Norton Anti Virus the installer quit before the full install was complete. I then restarted the iMac and the welcome to OS X progress bar completes and after that all that appears is a blue screen. I do have mouse movement but no login window appears. I have tried reinstalling the OS X software from the software restore disc that came with the iMac but this did not fix the problem. I then opened disk utilty on the the software restore disk and did what first aid was available on this disk, but again no fix. I tried booting from a Disk Warrior bootable disk but this disk will not boot. Through total desperation I opened disk utilty on the restore disk and went to intialise the drive, but the drive will not erase.
All suggestions of a fix or any assistance in fixing this issue would be greatly appreciated. To say that I an frustrated,stressed and demented over this would be a understatement.
Thanks in Advance
The Celtictiger

Last time I installed Anti-Virus on one of my Mac's. It was a terrible experience on my G5. Not to say AntiVirus is bad to install, but currently there is absolutely no reason to install one.
Really... don't waste money or cpu cycles on antivirus until there is a reason, right now there is this golden halo that protects mac from viruses. I really don't know why mac's rarely if ever have a virus, but I really don't question it either.
Paul
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I think my new iMac just fried my external Lacie d2. I kept my iphoto library on the d2 and was working in iphoto and suddenly photos started disappearing. When I rebooted, the drive was fried. Disk Utility couldn't repair it.

Microphone and iSight on iMac Core Duo

I am planning to buy a 20" iMac Core Duo and would appreciate hearing about users experience with the built-in mic and iSight. Specifically:
1. I've had problems with PC mics not picking up people speaking unless they have the mic very close to their mouths (1-3 inches). Does the built-in mic on the iMac work well for someone talking at normal volume and at typical distance from the screen - eg sitting at a desk? Can it pick up speech from further away - eg roughly 3-5 feet from the mic?
2. What is the advantage of buying the USB iSight camera over the built-in iSight camera aside from the ability to move the camera around? Picture quality? Or is there some other advantage?
Thanks.

When it comes to the mic it picks up EVERYTHING. I sit about 2 feet from my iMac and I have no problems when I have audio chats with other people. I have had people talk from over ten feet away and it comes in clear enough. Its safe to say the mic won't be an issue. As for the camera apple claimed it should be slightly better than the external firewire iSight. I never owned the older one so I wouldn't really know. The only advantage to the built in one is there are no extra cables dangling around and you don't have to go out and spend the extra $120. In terms of moving the camera around, I haven't had any trouble in getting it to point where I need it to, unless you need it to point at the screen. The computer turns, and tilts easy enough so its really not an issue.

Nikon Coolscan V ED and iMac Core Duo

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Here is my little exchange with Nikon today...
After they referred me to the FAQ that I already read.
ME: "Thank-you for your reply but I still think you've failed to answer my question. The article you refer me to with your link is main reason I contacted you. I'd like you to escalate this issue to somebody that can answer my questions in more detail...
Which BRAND-NEW Macintosh computers are supported with the Nikon LS5000 scanners?
Does Nikon intend to support Mac? If so, then when, since all new Macintosh computers now have Intel processors?
It's already been four months of new Intel Macs, I'd expect Nikon to have at least some small idea of how much longer would before the Mac platform is again supported?
What's even more disturbing is that I only stumbled upon this issue by browsing this support forum. I was on the verge of purchasing at least four and possibly up to eight scanners and corresponding computers. That would have been a financial disaster for my company considering the lack of support and the seeming lack of concern by Nikon regarding the new Mac computers.
NOWHERE in your sales literature or the Nikon Coolscan website does it say that Macs with Intel processors are not supported. The sales literature only states that Macs require at least a G3 processor or better. Most people would read that and assume that a brand new Mac with the latest processor would be better than a G3.
Shame on Nikon for hiding this issue under the rug and not providing a prompt solution for their very loyal customers."
NIKON: "Hello,
These days new operating system version pop up every other week.
We strive to keep our products up to date with the latest operating systems out there, and work closely with Microsoft and Apple to see that this support comes as quickly as possible.
Apple is still offering systems with the PowerPC processors, like the iBook G4, Power Book G4, and the Power Mac G5.
As of today, we do not support the new Mac systems with the Intel chipset, but this is currently being looked into. We have no other information to offer at this time.
Thank you,
Dave"
ME: "These days new operating system version pop up every other week." LOL- You must be thinking of Windows where there are nearly a dozen versions not counting the new Vista.
But I understand. Nikon is working on it and you have no further information. That's fine.
However, your sales literature is seriously flawed. It says that the scanner will be compatible with a G3 or better processor. If your equipment doesn't work with the newer Intel processor, then it's NOT compatible with a G3 or better; it's ONLY compatible with a G3, G4, & G5.
My complaint is that you should either make a note in your literature at least for your vendors or issue an estimated date of when you're going to fix the problem.
As I explained, this is a PRE-SALES question and your attitude towards me is troubling. I was looking to purchase between four and eight of these scanners and because of inaccurate information in YOUR brochures, I almost purchased thousands of dollars of useless computer systems.
Maybe you should forward my question up the chain of command at Nikon... to somebody that cares more about what POTENTIAL customers think.
Meanwhile, I will post this issue at dozens of Mac user forums so that others don't make a big mistake by thinking a new Nikon scanner will work on their new Mac computer system.
NIKON: "Hello,
We certainly do care about potential customers, which is why we will not offer any software that is not ready to be released. Software development takes a very long time to finalize, and involves a huge amount of testing before it is published publicly. Our timetable for software release for this new technology is unclear at this point, and we apologize for that.
As for the product literature, it will be updated to include this new item in time, and our vendors are supplied with up to date support information on a regular basis. At the time of publication, all information on the brochures was correct and up to date.
Thank you for pointing that out, however, and I will be happy to pass your comments onto our QA team for review.
Regards,
Dave"
I think everyone with a Nikon Scanner who is considering the purchase of an Intel Mac or vice-versa should send Nikon a flood of complaints regarding the issue. How long can this really take them? The new Macs have been out for quite a while now.
In my experience, Nikon has excellent equipment but once they identify an issue, they do nothing to resolve it. It gets swept under until the next scanner is released.
Example: The older LS-4000 scanner had firewire communication "issues". Issues that were never fully resolved but the LS-5000 scanner is now USB-2.0
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Can't videochat with iMac Core Duo, can with PowerBook G4

Hi everyone. My girlfriend and I live in different time zones, so we've been using iChat (me) and AIM 5.9 (her) for the last year to videochat. My PowerBook's screen died recently, so I bought an iMac Core Duo, and all of a sudden, we can't connect anymore. Here's my setup:
20" iMac Core Duo:
Mac OS X 10.4.5, iChat AV 3.1.4
Connects using wireless
No firewall
17" PowerBook G4 1GHz:
Mac OS X 10.4.5, iChat AV (whichever version comes with 10.4.5 for PPC)
Connects using wireless
No firewall
AirPort Express:
Firmware 6.3 (tested with 6.1.1 as well)
NAT, no port forwarding
Whenever I attempt to videochat with my girlfriend using the iMac, I get an error stating "Prachi Gauriar[me] did not respond." I browsed the discussion boards here and found the testing screen names (thanks Ralph!).
With the iMac, I can connect to Mac users, including appleu3test01, appleu3test02, and friends of mine. I cannot connect to RjinWI PC via AirPort Express (same error as above). It does work when I connect my machine directly to my cable modem.
With the PowerBook, I can connect to both Mac users and RjinWI PC via AirPort Express.
Bottom line: Using the exact same setup on my PowerBook and iMac, the PowerBook works and the iMac doesn't. I suspect this has to do with the new AirPort Extreme cards that are being used in the iMacs, but I'm not sure.
Has anyone worked around this? I'm kind of avoiding setting up port forwarding on the AirPort Express, as it's troublesome and doesn't really seem to be the problem. I'm willing to do it, but I guess I just don't expect it to work, so I'm hoping someone else has another suggestion.
20" iMac Core Duo (Early 2006) Mac OS X (10.4.5)

Hi Rj,
It seems many people are forgetting the tweaks they made to get ichat 3 to work on Tiger on Non intels when they switch.
I would check System preferences > Quicktime and set the Streaming speed to match their download.
Next I would be concerned about iChat Add-ons that are written for PCC (non Intel) code and set iChat to Open With Rosetta in the File menu and re-start iChat
iChatUSBCam is not ready yet.
iGlasses is.
Showmacster seems it is not.
Lastly I would ask how the ports are opened for iChat in the Modem (or Router) IF Port Forwarding are they pointing to the old Mac ?
12:20 AM Monday; April 3, 2006

Screen unevenness on iMac Core Duo 20. What to do?

Hi Guys,
I got my first iMac Core Duo 20 last Thursday. Everything is beautiful except the screen, which had pretty bad screen unevenness at the two bottom corners. I took it back today and exchanged it for a new one. But it seems this new one is even worse. It's so bad that when I try to play a widescreen video, the entire bottom black bar appears to be light grey.
I am now a little afraid to get another 20 and experience the same problem. Is the 17 inch iMac better in this regard? My girlfriend's iMac G5 20 doesn't have this problem at all. Is this maybe just a bad batch I ran into? I know some uneveness is unavoidable on consumer LCD panels but what I saw on these two iMacs were just too impossible to live with. iMac Core Duo 20 owners, what are your experiences?
Thank you all in advance!

It is under warrantee, take it back until you get what you have paid for. Have them test a new one in the store before you take it home.
BTW, mine has worked great from day one!

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Try a diferent USB keyboard ...
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Hello;
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17" iMac Core 2 Duo - boot problems - 10.6.8

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