Ok I spoke to jeff (a developer of TeraCopy) and I found something interesting: for some reason Vista only remembers the position (index?) of a file I cut. So if I cut the second file on a desktop ("file A") and then rearrange the desktop (name/size/type/date), the new second file (not "file A") will appear cut. Maybe you could test on your desktop? Just cut a file and then rearrange the icons (name/size/type/date). If it doesnt happen, then try rearrange again.