I built a new computer about a 8 months ago and had a blast doing and wound up with an amazingly fast machine for a good price. I mean this thing blazes in games and to this day lets me play anything I can get my hands on at maxed out levels.

Now my problem. No matter what I'm doing, whether it be gaming, surfing the net, typing a work paper or just listening to music, the machine freezes on me for a second or two at random times. It happens with the same frequency no matter what load it is under. After months of trying to figure it out I am stumped. I have tried new memory, different settings in just about everything I can imagine and still it does it.

Any ideas as to what could be wrong I would appreciate.

This is my rig:

MSI 6800GT GPU
THermal Take 480W PSU
Gigabyte GA-8I925X Intel 925X MoBO
Intel P4 530J 3.0GHz CPU
1 GIG (2x512mb) Kingston Hyper X DDR2 675 Ram
2x Samsung Spinpoint 120 Gig HD's
ThermalTake CL-P0024 Copper Cooling Tower