Anyone know of a simple reason for why a USB flash drive would zip right along in XP but not in Vista? It's a PNY Attache 8GB. Some of the folders on it are big, 400-500MB for a few of them. When I go to open one of them in Vista, everything grinds to a halt for about 60 seconds, then it opens. Sometimes when I plug it in, it'll take a painfully long time for the icons to appear. It doesn't do any of this in XP. Everything is virtually instantaneous. It doesn't make any sense cause the XP machine is much older with a slower processoer and less memory. I tried a Sandisk but it did exactly the same thing so I'm thinking it must be Vista. Any ideas?