I'd probably try a pci video card if you have one laying around, other than that I can't think of anything else other than it just went bad somehow.

First of all be sure that ram wasn't inserted backwards. If it was then things could have fried.

Things to check:
*Be sure that all of these are plugged in and tight:
All IDE Cables where...

maybe you need to delete all your partitions and then repartition before you format. do a web search on the ultimate boot disk & get someone to burn it onto a cd for you.it has all the tools you need.

could be a virus. make sure you have updated your antivirus scanner and do a complete scan. might also want to check for spyware

you need to push f8 during bootup and go into safe mode. then uninstall that program

i'd probably look for a used monitor for your exact monitor from an online auction.

Sometimes in aggrevation the ide cables can be ruined. Also, sometimes motherboards will lose function in one or the other, primary or secondary. It takes patience as all computers may be different...

could be a bad monitor or even a bad video card in your computer. other things are possible, but those are the most likely.

Maybe try reinstalling your os, maybe put the disk in & hold the c button down during reboot. Hope it works.

i'd just get another one to replace it, it'd be cheaper.

was the computer unplugged during repair?????

that would explain it if it wasn't.

Yeah, i had a hard drive that acted screwy like that too & it was all because i had the computer too close to a heat register.

reformat using other methods & do not use a recovery cd, use your windows cd

try dropping the 64

sometimes if wrong ram is used it'll cause it too. Ex: using PC133 ram in one that is intended to have pc100.
also mixing 2 different named ram sticks can cause it sometimes.
only other thing that...

Virus! Virus! Virus!

possibly ram memory going bad

You need to erase all partitions & start from scratch. if you're not familiar, get somebody to make you a win 98 bootup disk, look on the web for a program called the ranish partition manager & add...

if it powers down it was very possibly a virus. now with your new setup all you need is to setup a fresh install of Windows. The first motherboard you had may or may not have been bad, it would...

I feel for you. Sounds like something fried.

It could be possible that the bios went bad, but first i'd test it by trying different ram, if that don't work try unplugging one ide cable & rebooting, then the other. that would narrow it down to...

try different ram memory

first thing i always try is adding a pci video card

sounds like bad ram memory, bad cpu, or improper ide configuration