I have tried three different USB 2.0 Cards on my computer over the past three years, which has been at least three different motherboards. I thought I had to wait until Windows XP, but when I got Xp, and pulled that USB card out of the closet again, it didn't work. The system locks up (only power button recoverable) (or simply didn't recognize any device) each time I plugged anything in to it. I am so tired of getting it wrong, can anyone help me with a USB Card that will work with my system (or tell me why they don't)? Maybe I am am missing something. It is frustrating to have worked on the problem this long and found no solution.