This is strange. All of a sudden many of the icons on my desktop became what looks like white blank pages, as if OSX does not know which app to identify it with. There are a few exceptions, such as "Macintosh HD" or folder icons. It gets even more bizarre. If I copy the same file into a finder window, it displays the proper colorful icon. If I just move that file from Desktop into a finder window (instead of copying) then it is the same "white blank page" icon. I copy the "white blank page" icon on Desktop into a finder window, delete the original from desktop and copy that file from finder onto the Desktop, the icon gets displayed fine. I gotta say this is quite disheartening. I would expect Mac OSX to be more consistent and stable. Does anyone have any idea why this might be happening? I am using an intel 10.4.5 with all of the security updates.