Thanks to Bill Posters at http://forums.whirlpool.net.au/forum-replies.cfm?t=576507
I finally solved my USB problem after researching for a solution for 3 hours.
here's the excerpt from Bill's post:
" Pretty much exactly what happened to me. 6 USB ports on one pc all stop working. Devices all work on other computers. (XP Pro)
After going thru mobo manual, looking for driver updates, un-installing devices & re-installing, troubleshooting each port etc etc, I was considering power management options, BIOS tweaks etc then found the following.
SOLUTION:
Power off pc. Remove AC power cord from pc for a few seconds. Plug back in & reboot.
Something to do with residual capacitance/current I am led to believe. Seemed too good to be true when I read about it, but it sure worked for me."
Come to think of it, I can't believe it's this simple...felt like an idiot wasting 3 hours for such simple solution. The same solution I knew and had used before for other types of problem.
[@more@]