Although I did not purchase my computer from Best buy I am hoping that someone out there can help me. I have a Dell Deminsion 5100 it's about 4 years old. Pentium 4, 2.3 ghz, 256 mb, 160gb hard drive, not sure about the video card. Anyway recently my computer decided to randomly restart itself. At first it would only do it after sitting for a while. Then it went into a restarting "frenzy" to the point that it would not even get to the desk top. It would boot up for a couple seconds then restart. I ended up replacing the power supply, mother board, and a memory stick. Got the computer back and things were going good for a couple of days. Thing is I noticed that when scrolling(page down or up) it was like in slow motion. Then after sitting the screen saver would kick in and after the screen saver was running for a few the moniter would come back on and stay on.... then the screen saver would not kick in (hope this makes sense) Could this possibly be a video card issue?? If not does anyone have ANY suggestions!