mind_killer

Ok I tried it with a new mouse and its working now. I'm guessing changing the USB ports messed up with the hardware inside the mouse (caused due to a sudden surge in the voltage). All's well now. All USB ports working fine. Peace

And what if its a laptop?

Went into BIOS, and could not find anything related to USB there. Also tried shutting down the laptop for more than 12 hours. Did not help.

Looks like I finally got hit by the virus eh? Ok so I have this laptop since the past one year, and have been using the optical mouse on the USB port happily since. I have 2 USB ports on this machine, one on each side. Being a right handed person, I've always plugged in the mouse on the right USB. Today I tried plugging it in on the left one. Alas! I should have known that it was a real bad move. The mouse did not work, and the DNR bubble has been coming ever since on BOTH the USB ports whenever I try using my USB mouse. (Flash drives and iPod shuffle works fine). I already tried restacking the USBs and shutting down the laptop for more than an hour. This thing is bugging me for the past 6 hours...grrr..... Will try going into BIOS. I'm avoiding the registry edit as for now (have had some bad experiences on that one) I'll get back on any updates. My system specs: HP-Compaq Presario V6000 Laptop T2080 1.8GHz 1 Gig DDR PC2-5300 Windows XP Professional SP2 PS. Its not a Vista specific problem, obviously. Its Microsoft Windows.