I have been having problems with ne-naming my files, wenever i rename them a window popups up and says- "warning if you rename this file it may become unstable and unusable are you sure?" and if i do it changes the file from mpeg or any file wether it be a exe or a avi file to a .file and cannot be opened and the icon changes. this has only just started happening recently i was able to rename files before but no i cant. Please help me!!!!!