I recently reformatted, just for kicks. Before that I could be doing anything and the computer would still run fine, extracting archives, compiling a couple of programs at once and it was all the same, you'd never know it. Now, extract anything over 10MB, copy a decent sized file and the mouse pointer gets all jerky, sound stops and farts around, it's crap. This shouldn't be happening, I'm running fluxbox 0.9.12 on a P4 3.2GHz with 1.5GB RAM.
Any ideas what could be causing this? I'm using the nvidia drivers, not nv which have traditionally run like shit for me. Any help would be very much appreciated as this is driving me insane