The PERFORM CHECKLIST FOR DRIVES command sends up a query message for every drive (such as a floppy drive) that hasn't got a disk in. It seems that the DBS team used a really low-level check because it complained that it couldn't find a disk in (/harddrive6) or similar - My Linux partition! - Why isn't the standard Windows API used. All this command needs to do is tell me what drives exist, I don't need to know yet whether or not they are accessible.
I am really getting peeved now. I paid £50 for DBPro and I don't expect half of the stupid bugs I am seeing. If the BlitzBasic team can avoid it, why does DarkBasic have such a big problem. (I went with DB for the features in case you are asking, of which there are far more than Blitz)