I recently upgraded my fully functional XP Pro OS for Win7 Home, but I am having major problems with the pc hanging or crashing whenever I insert a blank or written CD 7 DVD. At first I thought it was my optical drive so I replaced that with a compatible LG drive, but the same thing happens. When I inser a disk the drive gives off a horrible noise, then the pc hangs. If I leave it long enough the drive starts to function sometimes, other times it just locks. I am able to burn to the drive once the system stabilizes itself, but this can sometimes be a lengthy process when I have my fingers crossed that the burn is successful. My new drive has the latest firmware installed. At the moment I dare not use any other software when the drive is in use for fear of crashing. Anyone else had the same problem? Please help if you can.