Hi, I am having a real problem. Whenever I put a USB flash stick into my MacBook (10.5.6) The Gray Screen of Death comes up. This happens with ANY flash stick; I've tried a bunch. I also tried formatting the stick using Fedora, but that didn't help either. Interestingly enough, these same flash sticks worked just a few months ago. I know Macs don't usually get viruses to speak of, but I'm pretty sure it's a problem with my mac. Any suggestions?