I'm still in the middle of transferring files from the FS9 installation on E drive to the new ones on the external drive. The transfer was going smoothly for the last week or so until this morning. My computer became very sluggish, would not empty the Recycle Bin on C drive except one item at a time, and very slowly at that. I shut down and restarted and that seemed to cure the problem until I checked the properties of the E drive, where the older FS9 iterations are located. I have worked a LOT of space off that drive, freeing up many gigs with this transfer until it was just shy of having 50% available space. A short time ago I opened up the drives and wanted to get started transferring more files. My computer now tells me E drive is 100% full, with no available space; I was thinking maybe if I ran a disk cleanup that would help with the problem. I've started the disk cleanup but get the dialog box saying, "Disk Cleanup cannot clean up drive E:\. Make sure that there is a disk in the drive. Press OK to select another drive." There shouldn't be a disk in E drive, it's a hard drive on the machine, not the CD drive. What's happened?