I recently installed this CD-RW/DVD-R drive, and have tested many DVD's and burned CD's to it and has worked fine... But now, whenever I insert any DVD's (+ and -), or CD's that I have read fine on other machines, The green status indicator light blinks spasmodically like it normally does, but you get the hourglass in Windows for about 2-3 minutes, and the My Computer window locks up. When the cursor comes back, I can double-click on the DVD-drive fine but it just shows a blank window, with the "Write these files to CD" link on the left. I have tried uninstalling/re-installing the drive, and have rebooted the machine several times. I also ran the Nero CD Speed test and that locks up completely. Any suggestions??