I have a weird problem with Lion 10.7.2 and Time Machine. It didn't happen at first when i upgraded to Lion, in fact i don't know when did it start to fail, just noticed it today. The backups are being executed properly in my external WD MyPasport Firewire, i can also enter in the TM disc and see all the backup files etc, but when i click on "Open time Machine" nothing happens. I can open the preferences perfectly, it's just Time Machine what won't open. The console doesn't show anything either. Any idea of how to fix it?