Hello! I've noticed that all of a sudden my MacBook Pro stopped installing updates. Lately, the only one that was installed up to the end was an HP printer update. Updates from Apple or from Microsoft Office will not get to the end of the process. It doesn't matter if I try via Software Update or directly from the Apple site. What happens it that the process goes up to the point I click "install" (after choosing the volume - which is the main HD), then nothing happens - no dialog box, nothing. I can click "install" a hundred times (the button remains available). Then I have to quit the installation process. Otherwise, the computer runs fine. I have tried to repair permission, The only weird message I get is that "SUID - cannot repair permission" I would appreciate your help.