Ang before you go lokking into things others have suggested here is one thing that may be the problem that could save you $$$. we had a power cut on Tuesday the same thing happened to the girlfriends computer after it, wouldn't turn on. Now if you use a power borad to plug your computer into that has a safty cut of switch on it for power spikes check that first. If its not that get the power surply on the computer checked/changed. that could have been damaged. Your power surply isd a 400-450 watt one. only one that comes out in the AMD ATHLON XP 2800, thats all you need to know with it really. If it is the power surply they are easy to change over even a dumby like myself can do that :) that way it will save you the $$$ on the labour.

I have opinions of my own -- strong opinions -- but I don't always agree with them.