The drive just didn't want the master/slave jumper on at all. Seems to work fine now, my mouse is another story. Anyone tried this switchbox? http://www2.warehouse.com/product.asp?pf%5Fid=VW86726&cat=pc&blind= Some on the OS X list like it and it's about the best price of any 4-ports that I've seen. I'm guessing I couldn't go into Compusa or the like and get something comparable. Thanks again for all the help! Diane