There is a weird problem that i encountered.. within Vista. And this happened a few times before.It would work perfectly at the start. Then after a few reboots, network will say "no connectivity" and then.... all media files will become "inaccessible" If i tried to open up a mp3 file or something, it will say "cannot access file" however i can copy the file to another computer and open it perfectly.It is also not the program since... i tried opening the media file on VLC or another media player, and still no luck.Usually have the following programs:AOL Instant Messenger 5.9Adobe CS2 ApplicationsCombined Community Codec PackMicrosoft Office 2007MSN MessengerYahoo MessengerBut i really dont see a program doing that... seems like something REALLY wrong with vista.Its also hard to debug it by installing a program then rebooting, since it doesnt cause it to happen instantly. I could have all the programs installed then after 5 or 10 reboots it will start doing it. Its also not a virus/adware, i have scanned the installation disk, and the computer HDD with:AvastSymantec Antivirus CorporateSpyware Doctor