Originally Posted by thenomad
My problem was, my cd burner was occupying derive letter D: which blackberry was expecting to map its drive letter. what fixed the problem was going into the disk management gui (from dos command line, type diskmgmt.msc) and remapping the drive letter for the cd burner to something else. Posting just in case others have the same problem.
You can also just right-click your My Computer icon, select "Manage," and then access Disc Management from there.