Unresponsive / WindowServer freezing on new iMac

Hello,
While editing images in Aperture, I am encountering frequent freezing. Aperture becomes unresponsive for several seconds to half a minute or more, and then starts to respond again. It has occured after using a few different types of brushes, but happens most consistently when I do skin smoothing. When it freezes, the entire system is inaccessible -- I cannot switch to other applications or bring up the Dock. Also, the mouse pointer does _not_ change to a beachball.
I am running Aperture 3.4.4 in Mountain Lion on a brand new 2012 iMac 27" 3.4 GHz with NVidia 680MX, 24GB ram and 1TB Fusion Drive. My photos are on the Fusion dive and it has a lot of free space. The photos are managed in the Aperture library (not referenced).
I checked the Console and the WindowServer is showing a lot of messages like this:
2013-04-27 4:52:13.191 PM WindowServer[108]: disable_update_likely_unbalanced: UI updates still disabled by application "Aperture" after 16.39 seconds (server forcibly re-enabled them after 1.00 seconds). Likely an unbalanced disableUpdate call.
2013-04-27 4:52:13.193 PM WindowServer[108]: reenable_update_for_connection: UI updates were finally reenabled by application "Aperture" after 16.39 seconds (server forcibly re-enabled them after 1.00 seconds)
2013-04-27 4:55:43.729 PM WindowServer[108]: CGXDisableUpdate: UI updates were forcibly disabled by application "Aperture" for over 1.00 seconds. Server has re-enabled them.
2013-04-27 4:55:43.735 PM WindowServer[108]: reenable_update_for_connection: UI updates were finally reenabled by application "Aperture" after 1.77 seconds (server forcibly re-enabled them after 1.76 seconds)
2013-04-27 5:03:35.832 PM WindowServer[108]: CGXDisableUpdate: UI updates were forcibly disabled by application "Aperture" for over 1.00 seconds. Server has re-enabled them.
2013-04-27 5:03:35.836 PM WindowServer[108]: reenable_update_for_connection: UI updates were finally reenabled by application "Aperture" after 38.18 seconds (server forcibly re-enabled them after 38.17 seconds)
2013-04-27 5:10:13.197 PM WindowServer[108]: CGXDisableUpdate: UI updates were forcibly disabled by application "Aperture" for over 1.00 seconds. Server has re-enabled them.
2013-04-27 5:10:14.633 PM WindowServer[108]: reenable_update_for_connection: UI updates were finally reenabled by application "Aperture" after 2.44 seconds (server forcibly re-enabled them after 1.00 seconds)
I tried the following:
1. Disk Utilty repair permissions
2. All three of Repair Permissions / Repair Database / Rebuild Database on my Aperture library
3. Deleted Aperture preferences from ~/Library/Preferences/com.apple.Aperture.plist
4. Deleted the Aperture cache from ~/Library/Caches/com.apple.Aperture and re-started.
Unfortunately the problem is still happening. The new iMac seems to be working reliably in other applications and is a very fast machine. I am at a loss for what else to do.

Léonie,
Thanks for replying. To summarize the steps Linc Davis suggested for diagnosis:
Step 1. Log in under Guest account and see if problem occurs (to isolate whether it is localized to my user account).
Step 2. Boot in Safe Mode and see if the problem occurs (to isolate whether it is caused by third party kernel extensions etc. installed on the system)
Step 3. Run several terminal commands to list what third party extensions etc. are on the system.
Step 4. Boot from a clean install of Mountain Lion on an external drive and see if the problem still occurs.
I will try Step 1 and Step 2 first and post back.
In the other thread, the user is encountering WindowServer freezes in many applications (Safari, Mail, Activity Monitor…). So far for me, the problem is isolated to Aperture only.
Trevor

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Message was edited by: kmtowel

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Message was edited by: ThirdMarioBro

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|___________________
Allan

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12-08-15 11:34:28.550 AM com.apple.launchd: (com.apple.coreservices.appleid.authentication[128]) Exit timeout elapsed (20 seconds). Killing
I can post the entire bootlog if necessary, it isn't all that long. Any experience with this problem? The Seagate people provided good phone support but they haven't heard of this problem before.

Here are the specs for your HP Pavilion p6720f Desktop Computer. According to the specs your system came with integrated graphics using ATI HD Radeon 4200 and a 250 watt power supply. You indicate that your computer now has an ATI Radeon™ HD 5670 Graphics card installed and you are having issues. According to AMD the reference ATI HD 5670 graphics card requires a minimum of a 400 watt power supply. If this is a retail card, you will need to upgrade your power supply to accomodate this graphics card. The Corsair CX500 and CX600 power supplies are good choices and are known to fit many HP cases.
Please provide the make (not AMD or ATI, but Asus, EVGA, etc.) and full model number (not 5670, but HD-567X-ZNF3, etc.) of the graphics card in question for more assistance.
Frank
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This is a user supported forum. I am a volunteer and I don't work for HP.
HP 15t-j100 (on loan from HP)
HP 13 Split x2 (on loan from HP)
HP Slate8 Pro (on loan from HP)
HP a1632x - Windows 7, 4GB RAM, AMD Radeon HD 6450
HP p6130y - Windows 7, 8GB RAM, AMD Radeon HD 6450
HP p6320y - Windows 7, 8GB RAM, NVIDIA GT 240
HP p7-1026 - Windows 7, 6GB RAM, AMD Radeon HD 6450
HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

Photoshop CS5 freezing-up on new iMac

I've received the new 27" iMac last week, 32GB of RAM, 1Tb Fusion Drive, GeForce GTX 680. Installed everything, including Photoshop CS5 Premium. I'm moving-up from a 2008 Mac Pro, where Photoshop CS5 ran flawlessly. However, on the new iMac, everytime I open up a file (PSD, JPG, anything), Photoshop freezes up for 5-6 seconds. It may not seem like a big deal, but when I open 20-30 files, Photoshop stays frozen for a good minute. I believe the issues lies in the Mac itself. Can someone recommend a way to isolate the issue? Is there something in Terminal I can monitor?
On the side note, everything else with the new iMac has been fantastic. The display, processing power (far faster than my Mac Pro, and USB 3 and Thunderbolt are a welcome upgrade to the USB 2 I was limited to).
Thanks a million guys!

Ok, it turns out, Font Agent Pro 4 was causing the lock-up. I've upgraded to Font Agent Pro 5 and the issue is resolved.

New imac keeps freezing.

I've had my new imac for 4 days and every day it keeps freezing this is normally on a screen saver or front row, I have tried force quit but nothing seems to help and in the end have to restart my imac, I have also done clean install but it is still keeps freezing up.
Any help would be appreciated.
Mikey.

We have a few threads on this now.. So its certainly a significant issue I feel.
But to repeat what I said in another thread recently (because my iMac does this too).. I don't think it is a heat issue. I've checked system temps and although warm.. They are nothing out of the ordinary.
Plus, my iMac has locked up very soon after being turned on, when it could not have heated up so fast anyway. Plus it will still lock up if I use 3rd party software to ramp up the fan speeds more.
I could be wrong of course, but that is my hunch..
I've run hardware tests, including Apples own and Techtool tests. Multiple times even. And they have never shown any faults. I also eliminated any possibility of bad ram, by removing the apple supplied ram altogether and substituting for another chip, but still it locks up.
For those of you who's new (mid 2007) iMacs suffer this, you should find that most of the time, there is an error/crash log generated in the console under the system logs heading.
The logs will be big, but it may well be worth posting them up here, because someone smart enough should be able to decipher them and tell us what the problem really is. Im no techy, but what I have seen so far doesn't suggest anything obvious, but looks like lots of memory addresses? Another user in a different post reported the same thing. So I may post one up later..
So far, im leaning towards some software issue rather than any hardware defect. In which case an update should fix it. But again, thats just my opinion and semi-educated guess!

Unresponsive / WindowServer freezing on new iMac

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