I am having a hardware problem with my machine and am trying to diagnose it. The first thing that happens is that my screen freezes. It has always happened when my screen saver was running, but I'm assuming that's just a coincidence. After the screen saver freezes, here are some things that have happened on reboot. 1) The computer beeps twice and nothing happens. No bios screen comes up, no disk activity, nothing. 2) There is disk activity as if the machine is booting, but the screen is blank. 3) Once, the machine actually booted, but what was on the screen was pure garbage -- a screen full of letters overlaying other letters overlaying icons, etc. There wasn't a centimeter of blank screen space. It was completely covered with this garbage. My guess would be that I've got a video card going out, but item 1) makes me wonder. Could a bad video card actually cause the machine to just give two beeps and not even try to boot? In all cases, if I let the machine sit for maybe just 5 minutes it will re-boot normally (so far, anyway, but I tend to think the problem will get worse over time). Once it's back up, it will run for some time with no problems (I don't recall it ever happening back to back on the same day, but if I left it up long enough the second time I suspect it would ultimately lock up again). There's some pattern here in all of this, but also some inconsistency. Any help diagnosing this problem greatly appreciated. Thanks, Greg Wallace