Please repost in our computer help forum: http://forums.cnet.com/computer-help-forum/
What did the shop say when you complained and asked for a warranty repair?
I'm locking this thread (because of the wrong forum) and deleting your duplicate post.
I just purchased a new Toshiba Satellite R840-12C and my problem is that date and time keeps changing. Example: let's say that the date today is 9/1/2011 and the time is 5:43 PM. Once I rebooted my system, the date and time becomes 8/31/2011 & 5:43 AM. Please help me guys...