i described the problems in the original post, here are some of them
1. desktop background picture was changed (i changed it back)
2. time was changed back one hour (i changed it back)
3. outlook calendar does not have my synchronized events from pocket pc
4. CD/DVD rom icon are missing, and when i check thru device manager both drivers have a yellow symbol next to it, probably missing
5. when i plugged my thumb drive in, there is no recognition
6. windows media player, realone, and jukebox not working properly, i downloaded the windows media player new version and it works
7. i dont know if the computer will recognize my pocket pc, i dont want to synchronize it if it may delete my information.
i used system restore but no resolution
what caused the problem?