So it looks like a hard drive problem from the description in this thread. Fortunately gcortes has the solution.
I’m pretty sure I found the problem. I ran a disk verify from the Recovery Disk OS X Utilities. There were so many errors, it didn’t complete. I ran the disk repair and the verify again and it was happy. I didn’t reboot to test it as I was in the utility for reformat and reinstall the OS to give the Mac Mini to my nephew. With as many errors it had, I was surprised it ran at all.
Heisencoder: Fixing up the Mac Key Bindings for Windows Users. Are you looking for Hackintosh Keyboard shortcuts? I had a user of this site do a search for that here and it didn’t find any items. Just as a general rule, if you can’t find something or think that I should have something, just send a quick note in any comment box and I will respond to it. I want to be as useful as possible for my readers.
Pondini solves the issue. Other common Time Machine issues can be found here.
That’s quite strange.
There must be something damaged in your installation of OSX. I’d suggest downloading and installing the 10.6.6 “combo” update. That’s the cleverly-named combination of all the updates to Snow Leopard since it was first released, so installing it should fix anything that’s gone wrong since then, such as with one of the normal “point” updates. Info and download available at: http://support.apple.com/kb/DL1349 Be sure to do a Repair Permissions via Disk Utility (in your Applications/Utilities folder) afterwards.
If that doesn’t help, reinstall OSX from your Snow Leopard Install disc (that won’t affect anything else), then apply the “combo” again.
Join the club. I had this problem with my own machine. I fixed it by reapplying the 10.6.6 combo update. Still if that doesn’t work, try what ctmurray said.
I have posted this list of things to try before, but I have updated recently. These are gleaned from reading many posts. It does not include the recent postings on reverting your Airport card driver to a 10.6.4. I strongly recommend everyone consider the first items which have been verified on this support board as solving the problem. Not all are required, each is listed because it alone solved the problem for that user(s). For some reason the updated OS is more sensitive to wifi interference – the same environment now is causing issues and does not on earlier versions, so please check out wifi interference as a option. Same with the wifi security, recent OS updates seem intolerant of WEP security.
All the fixes;
Fixes known to have solved the problem to posters on this board
1. Verify that there are no interfering signals (other WiFi units and portable phones or microwave ovens). Change channels regardless as you can’t “see” outside inference
2. Repair permissions – directions at http://support.apple.com/kb/ht1452. Use Onyx to repair to a more complete level.
3. If you have WEP security change your security to WPA or WPA2
4. Delete Keychain password http://docs.info.apple.com/article.html?path=Mac/10.6/en/9078.html or create a new password on your router
5. Network Prefs – Make sure Airport is the top service on the list. Consider edititng your wifi location (remove airport service and re-install) OR create a completely new location.
6. Look for conflicting out of date or beta software (Peer Guardian, Parallels and VMFusion known issues, Sophos antivirus)
7. Make a backup and then delete network preference files, Macintosh HD -> Library -> Preferences all plists starting with com.apple.internet, then move the System Preferences folder to your desktop (as a backup) and restart your computer.
8. Flush Cache files: Navigate to this folder:/System/Library/Caches, delete all the files in this folder.
9. Mac Mini – be sure bluetooth is enabled. Confirmed disabled BT with 10.6.5 results in WIFI timeouts.
Thing that are recommended, not yet confirmed
10. Reset your PRAM– directions at http://support.apple.com/kb/ht1379.
11. Reset your SMC – directions at http://support.apple.com/kb/ht3964. This was suggested by Small Dog Tech Tails for many problems
12. Create a new user for the computer and set up wifi for that user
13. Network Prefs – get a new DHCP lease
14. Network Prefs – disable Ipv6
15. Manually enter your ISP DNS IP addresses in Network Preference
Troubleshooting tips to help isolate the problem:
18. Grab a Console log and post the results here, look in your system.log (viewable via Applications->Utilities->Console)
19. Set up ping to continuously poll the router as a temporary fix
20. Report bug to Apple - http://developer.apple.com/bugreporter/
You have to sign up to be a “developer” but it is free.
16. Be sure your router firmware is up to date
17. Make sure there are no IP conflicts with other devices