I cannot, however, empty the trash because it says the item in the trash is in use. I can look at either 'drive' and delete the file that is on there, but it does not get deleted on the second drive - so the two of them seem to get out of sync. But today when plugged back into my 10.4 machine, it shows up twice again. On a 10.3 machine yesterday I reformatted it while zeroing out all the data and it only showed up once. I have used drive utility to re-format it (but even in drive utility it shows up twice). I have a 64MB USB thumb drive (the only name on it I can see is VeriTest, which might be the name of some company that was giving them away) which always mounts on the desktop twice. The problem is exactly the same as the one mentioned last october (please see here below) in this forum but has not been aswered. I just got my G5 and I have partitioned my disk, though I dont think this has any influence on my problem. I am talking about the finder window and the desktop: once I have plugged in the usb stick it then shows two connections to the stick: I have a 1GB USB thumb drive which always mounts in the finder twice:

Usb shows up as 2 drives