Nope, doesn't sound like it.
Still give the other things a check over though before you go and try a Windows reinstall. Also if you know your way around your BIOS.. try downloading & running a progem called
memtest86 It runs from a bootable CD, so you'll need to burn memtest to disc first & then set your BIOS to Boot from that disc. This little program will check your systems RAM memory for any errors, such errors can cause all sorts of issues. Again though.. If your not sure about this stuff, perhaps get a friend who's done this type of thing before to help you out.