I just started having this problem with my cpu. It "lags" or "sticks" every few seconds. For like 5 seconds everthing will work fine, then it will freeze for like a second then freeze again, and continues. Is this most likely a problem that I might be able to fix by DLing a new video driver off the net, or does this sound like a more serious problem. This computer is 4.5 yrs old, and I don't like the thought of putting money into it to keep it going, because I want to get a new system within the next few months. Any help or advice is welcome. Thanks.
Doesn't sound like it, but have you recently installed new hardware? If so, check for IRQ conflicts. Running Windows? You might consider a program to clean-up the registry. (Back it up first!) Buy a version that you can use later on your new system.