I'm not entirely sure why, but my computer doesn't register USB memory devices. I'm using a USB keyboard and mouse, but the memory stick doesn't register. It's definitely plugged in as a little light's turned on on the device. Any solutions?

So it doesn't appear in the My Computer or it doesn't Autoplay?

Well you should definitely try the same stick on a different computer, see which device is the problem.

Or a different port in case the wiring or some such is bad.

Since other USB things work, it's probably the device. But since the light turns on, it's probably just a small problem with the memory hardware itself.

Both

I did and it worked on the other one.

I did this and it still didn't work in all ports.