A friend of mine has a Macbook Pro Core Duo running 10.4.7. He has a problem now where whenever he is in the finder, if he double clicks on any icon, nothing happens. Folders, files, applications, hard drives, doesn't matter. Double click does nothing. He can hit Command-O and they will open, but not double click. I ran Disk Utility and Disk Warrior; both found minor issues that were repaired but the problem remains. I am betting some setting got changed inadvertently but I can't figure out what.
Any help appreciated.