When this converter arrived I plugged it in and the system (Vista Ultimate 64 bit using Linksys 4 port KVM switch) recognized it and installed the drivers. So far so good. The mouse didn't respond smoothly and hesitated and began generating random button presses (both left button and right) while moving across the screen. I went out and bought a Belkin converter from Staples ($35). That works fine.This is the first product I've had to return to Amazon.After looking around the web for a while it seems that USB/PS2 converters are pretty iffy. Doesn't seem to matter whether you buy the cheapest one or the most expensive, some just work and some just don't. Wish I could tell you how to pick one that will work on your system, but it looks like it will be trial and error.