Hello There, It little bit odd to discus an Hard Ware problem here but I think it is not hardware that sucks but software or driver problem. I have Microsoft Basic Optical Mouse but 98 , on start up, some time ask me to Plug Serial or PS2 Mouse even after I already plug above name USB mouse already with system. Thank I Need to Shutdown system and again reboot it and in 1st or 2nd boot 98 detect that I have muse but it can not detect as Microsoft Mouse, instead of it, 98 detect is as HID Comp. Mouse. There is no problem with mouse as this mouse Works perfectly Fine while I have 2000, ME and XP OS on same system. Any solution for this? Any reason what makes it to sucks? Thanks.