??? What the heck, 20Gigs of RAM??? Unless your running a massive server there buddy that dosnt even exist. How about you give us some more info.

I think you mean to tell us that you have intel extreme graphics, a P4 (probibly a northwood) and a 20Gig harddrive. But even still this gives us nothing. We need to know
Processer Speed
RAM size
And graphics interface on your  mobo (AGP 8x/4x PCI-Ex16 or PCIE)

Come back to us with that for more help.