I've posted here before, a few months ago, with problems with my PowerMac G4 Quicksilver, 2002 model with mirrored doors. Dual 1Ghz processor. It's now testing my patience even more and I'm out of ideas so I'd like any input I can get. I upgraded RAM two months ago about to a full 1.5GB and added a USB card to one of the PCI slots, and have had no problems until three days ago. That day in question I noticed the Temperature Monitor registering 122.6 degrees, the hottest it's ever been. With the case opened it dropped to 112 but was still searing heat from below the unit. Both fans are blowing air though I don't know the output of them originally so they may be slowed down somewhat. After shutting it off for a day to cool down I'm greeted with a problem I thought I had fixed with the RAM, the infamous black 'restart' screen as soon as it powers up. It does this from turning on cold or from waking up from sleep mode for 3-7 times in a row, every time. Once finally on, it will work but is horribly slow now, I downloaded two zip files earlier today and what usually takes 2-3 minutes took over 15 minutes. Loading pages on the internet is slower, and some websites the pictures or large text don't even load at all. Thinking it was just a weak connection I opened my external hard drive, it too took several minutes to be recognized, and several more to open. So basically it's gone from being a little finicky to completely useless. Cliff notes: Black 'restart' screen several times in a row when first powered up. Extremely slow OS, downloads, web page loading, recognizing external ports. Severely high heat, over 120 degrees. My main issue is there is virtually no one in the Atlanta area who works on Macs or will give me the time of day at least, I either get turned down to look at it at all or told the unit is outdated junk and I should throw it away. I know very little about computers and cannot just hop in and repair it myself. Can anyone enlighten me on a diagnostic procedure for some of the problems or give access to someone locally who knows what they're doing and won't rape me in repair costs? I have done disk utility and verified/repaired permissions, but the repair disk icon does not illuminate for me to click on.