IBook's failt to wake from sleep.

Question

I've had an ongoing issue with two late '05 model iBook G4's that occasionally do not wake from sleep. I've documented that in an earlier post Titled "Topic: Waking from sleep requires Forced Shut Down on two different g4 iBooks,"
http://discussions.apple.com/thread.jspa?threadID=337599&tstart=15
The problem continues, and appears to have increased in frequency since the last OS update, although I can not say that with certainty, but I have noted a possible correlation between the problem occuring and the Dashboard being open when the computers go to sleep. Is anyone aware of any difficulties involving sleep issues, in particular problems waking up from sleep and the use or operation of the dashboard? The only widgets I use are Radar in motion, weather and ministat2.
And if anyone has any other asisstance from the previous thread, I would appreciate it.
ibook G4 1.33ghz 12, 1.42ghz 14   Mac OS X (10.4.2)  
ibook G4 1.33ghz 12, 1.42ghz 14   Mac OS X (10.4.2)  

Answer 1

You may have missed it above, but resetting the PMU:
http://docs.info.apple.com/article.html?artnum=14449
may resolve your problems regarding the iBook not waking properly from sleep. The Power Management Unit has control over the sleep function, so resetting it often helps when someone is having this trouble.
Every time you have to do a forced shutdown instead of a normal one, there is a chance of hard drive damage and you should repair the hard drive, either by booting into Safe Mode or starting up from the Mac OS X Install Disc by inserting the disc and restarting your computer, holding down the C key at the end of the startup chime. Then choose Installer > Open Disk Utility (in Panther) or Utilities > Disk Utility (in Tiger) and select the hard drive in the left column. Choose the First Aid tab. Click Repair Disk to test and repair the hard drive. Once you have repaired the hard drive with either Safe Mode or the Install disc's Disk Utility, then start up normally and repair permissions from Disk Utility in the Utilities folder on your hard drive.