power supplier keeps burning!

I recently bought a new AMD2400+ processor, with a
Gigabyte board.
I installed it, and an hour later i started to see
horizonal "ghosts" on my screen.
as minutes passed, the ghosts became more and more densed,
until the power supplier was burned.

I got my power supplier replaced - and it was burned the
same way again - this time taking my 2 HD's, and a burner
with it.

does anyone have an idea why this keeps happening?

Did you replace it with the same watt and brand psu?
If you did there is a good chance that your powersupply just doesn't have the output to run your system.
What powersupply/supplies have you used and encountered this problem with?
About the hard drive and cd-rw failing...that is probably related to the fact that when a powersupply is under extream load the voltages fluctuate this could be enough to cause these items to fail.