Dane Summers successfully answered Rich Collins's question:

At least once a day, OS X Freezes when I Command-Tab.

The application switcher comes up, the selection box is over an application I can move the mouse but that is it. I have to restart every time this happens. I will pay mucho to get this working.

*Update*

I found this person with the same problem:

http://simplygenius.com/geekblog/2006/01/26/1138308962040.html

*Update*

I already upgraded to 10.4.7

*Update*

I already tried to repair file permissions

*Update*

This happened on my PowerBook, and now it is happening on a "fresh" install on my new MacBook. Here is what I am usually running:
* TextMate
* FireFox (Have a hunch this is it for some reason)
* X-Chat
* Terminal
* Mail
* Adium
* SSH Keychain
* iTunes

People succeed in answering Rich Collins's questions 37% of the time (32 successes in 86 attempts).

Answers by: Dane Summers | Aurelius | nerkles | Juice10 | JJeffryes | Jake McArthur | falcoboy7 | alex | newbalous5001 | Robert Mayott

Robert Mayott's Answer:

Reply by Robert Mayott 742 days ago

I would try doing a disk repair, or reinstall Tiger.

Reply by Rich Collins 742 days ago

This was happening to my PowerBook.  I bought a MacBook, did a fresh install of many of the same applications and it still happens.

Reply by Robert Mayott 742 days ago

Keep uninstalling the apps that you installed until it stops doing it. Then reinstall the other apps that did not cause it do crash.

Reply by Rich Collins 742 days ago

Yikes that could take forever - no way to debug this?  Also, you can chat with me (see the link on the left) - might be a faster way to take care of this

Chat Conversation 742 days ago

hey Robert Mayott at 6:06 PM on Tuesday June 27th, 2006
Can you make me a list of installed apps? Robert Mayott at 6:08 PM on Tuesday June 27th, 2006

Reply by Robert Mayott 742 days ago

Can you make me a list of installed apps?

Reply by Rich Collins 742 days ago

I frequently use the applications in bold

 adsl-75-6-247-214:/Applications rcollins$ ls -l | awk '{print $9}'

Acquisition.app
Address
Adium.app
Adobe
AppleScript
Automator.app
Azureus.app
Calculator.app
Chess.app
Colloquy.app
Create
Create
DVD
Dashboard.app
Dictionary.app
DivX
DivX
Firefox.app
Font
GPG
GraphicConverter.app
Image
Internet
Mail.app
OmniOutliner.app
Photo
PostgreSQL
PostgreSQL
Preview.app
Query
QuickTime
Quicksilver.app
RSS
SSHKeychain.app
Safari.app
Sherlock.app
Stickies.app
System
TextEdit.app
TextMate.app
TinyAlarm.app
Uninstall
Utilities
VLC.app
X-Chat
iCal.app
iChat.app
iDVD.app
iMovie
iPhoto.app
iSync.app
iTunes.app
 

Reply by Robert Mayott 742 days ago

Does it happen every time? Open each one of those apps at a time and do TAB until it crashes, and then uninstall that app.

Reply by Rich Collins 742 days ago

It happens only a few times a day.  I am a programmer and I constantly command-tab between applications.  So I might have to command-tab for hours before it would happen.

Are there any logs that I could check? 

Reply by Robert Mayott 742 days ago

Check your system logs. (Click apple menu and select about this computer. A window will pop up displaying some basic information about your computer. Click on the more info button at the bottom of the window. This will bring up Apple System Profiler. The last tab furthest to the right of the ASP will be labled “Logs" click on it and then select console.)

Reply by Rich Collins 741 days ago

Hmm I wasn't able to find anything interesting in the logs - I did find the reboot logging info, just nothing right before the reboot of interest.  Perhaps I will just have to plod through google results :(

Reply by Robert Mayott 741 days ago

Post here what happened right before the shutdown.

Reply by Rich Collins 741 days ago

Jun 27 17:22:51 rich-collins-computer sudo: rcollins : TTY=ttyp2 ; PWD=/Users/rcollins/projects/bugfix_branch ; USER=root ; COMMAND=script/server webrick -p 80 -b 127.0.0.1
Jun 27 17:24:07 rich-collins-computer sudo: rcollins : TTY=ttyp2 ; PWD=/Users/rcollins/projects/bugfix_branch ; USER=root ;COMMAND=script/server webrick -p 80 -b 127.0.0.1

CRASHED HERE


Jun 27 17:27:51 localhost kernel[0]: hi mem tramps at 0xffe00000
Jun 27 17:27:51 localhost kernel[0]: PAE enabled
Jun 27 17:27:51 localhost kernel[0]: standard timeslicing quantum is 10000 us
Jun 27 17:27:51 localhost kernel[0]: vm_page_bootstrap: 250521 free pages
Jun 27 17:27:51 localhost kernel[0]: mig_table_max_displ = 71
Jun 27 17:27:51 localhost kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
Jun 27 17:27:51 localhost kernel[0]: 84 prelinked modules
Jun 27 17:27:51 localhost kernel[0]: ACPI CA 20051117 [debug level=0 layer=0]
Jun 27 17:27:51 localhost kernel[0]: AppleACPICPU: ProcessorApicId=0 LocalApicId=0 Enabled
Jun 27 17:27:51 localhost kernel[0]: AppleACPICPU: ProcessorApicId=1 LocalApicId=1 Enabled
Jun 27 17:27:51 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Jun 27 17:27:51 localhost kernel[0]: The Regents of the University of California. All rights reserved.

Reply by Robert Mayott 741 days ago

Next time it happens, take a note of what apps are open, and post here.