Since updating to SL I found that nothing happens when I click on the Time Machine icon in the dock. Nor does it respond if I click "enter time machine" from the small icon in the menu bar. It is making backups though and If I manually go into the time machine drive through the finder I can see that the files are all on the drive. However, clicking on the icon does not do anything (i.e. it does not take me into the graphic of going back in time). Any ideas?