I have Compaq Evo 310 running XP 2. A few weeks ago it started hanging up more frequently than normal, with the only solution disconnecting the power. Yesterday after restarting, I got the DOS script saying that I was having a problem and should consider starting up in safe mode, or starting normally and going to a previous restore point. When I tried to start normally, I went bact to the DOS page. On about the third effort to restart, all I got was a screen with Cmpaq's name and "press F10 for setup, press F12 for network...." Pressing the function keys took me nowhere. Only way to proceed was to disconnect the power. Further efforts to restart continued to give me the same screen, and occasionally just Compaqs name without the note about function keys. I put the restore CD that Compaq provides in the D drive, and the introductory screen came up advising me that if I wanted to continue, it would reformat the hard drive and reinstall the hardware. Since that was not my choice yet, I started to move the cursor towards the cancel button when it locked up. Only alternative was to disconnect the power. On one more start, I got the introductry screen without the cursor, but on subsequent efforts, even the introductory screen would not come up. Now all I get is the screen with Compaqs name, which I assume is part of the boot proceedure. I do not get the note about the function keys. Fans run, lights on the drives flash,, but no action I disconnected the power to all drives (4), and tried to restart but got the same results. Just Compaqs name. I assume that this is not a C drive or software problem. I am a novice at this game, but my guess is that my problem could be associated with 1. the bios chip 2. the power supply 3. memory chips 4. mother board 5. CPU Since I do not have parts to start switching pieces out, is there anything that I can do to elimanate some of the above, and hopefully locate the problem?