I recently reformatted my laptop harddrive and began reinstalling everything. I've had everything up and running for a couple weeks but recently I downloaded XP sp2 and a few other updates. Certain .exe files have been behaving very oddly. I double click on them and nothing will happen, nothing in the task bar, nothing in the task manager, nothing at all, just a flicker of the cursor and a brief hourglass. I downloaded Norton anti-virus and i can't install it because the .exe doesn't do anything . Other .exe's behave the same way, but not all of them. I've tried a bunch of stuff but my knowledge is limited. I can provide more detail if some one has an idea as to what the problem might be. -ebubs