i installed new motherboard. Had some stranger problems with USB devices. 2 nights my USB keyboard stopped working after unplugging it and pluging it in again for about 30mins it started working again. Last night My MP3 Player when plugged in came up as not regconized or malfunctioned.(first time ever) Happened for a while. Never worked last night. at all. I was wondering if it is because i installed new board with out installing windows again(had serveral different problems with windows since) Anyone had any weird problems like that. MP3 player was working at the weekend/start of the week. I forgot to take it to work this morning to test it Doh!