Are you using Mac or Win? If you are on a Mac try rebuilding the desktop. Restart while holding down command and option until you see the message asking if you want to rebuild the desktop. Tell it yes. This usually helps when icons start taking on an appearance that they are not supposed to. If you are on Win, I have no idea. A Win user will have to help. Either way, the files you saved are most likely not Quicktime. If you save as a psd than is is a psd, it does not spontainiously become QT but someimes icons do get screwed up.