Yeah, probably time for an OS reinstall. With the amount of crud that DELL ships on their PC's, your not starting out with an optimally setup OS anyways, and then over time the registry can get bloated, and or damaged. The OS can get munged up fairly quickly, and unless you use regular maintanance routines, you aren't likely to get 2 years between Reformat/Reinstall(at least not without performance degradation). GLThere's a 100% chance that it's a software issue (spyware, Norton AV, internet explorer are the likely culprits). Fixing your software problems is the key to better performance.