I've changed monitors, cables and even hard drives. On start up, there is what looks like "static" around the DELL icon, then I'm unable to boot up the PC. I have to keep powering it down, wait, power it up, and after 4-5 tries it boots and runs just fine. It might run fine for the next 4-5 boots then it's an issue or it might do it every time for several days. I've researched anything I can think of. Stats for my graphic card are: 128, 300 MRMGA11B, NV (which I confess means little to me)