I have several folders on my desktop. They are just miscellaneous folders containing pictures,etc. When I double click to open any of them the screen flashes, all the icons disappear, all the icons then return but the folder is not opened. If I right click on the icon and try to open from the menu the same thing happens. All my desktop program (applications, exe. files etc.) icons work perfectly but these file folders do not. I have done a full scan with Norton and found no errors. I've tried a system restore, but can't find a good time to restore back to.