Dock is broken, Exposé not working, command-tab not working: any clues?
Not sure what I've done other than to try to look at a corrupt Adobe LightRoom jpeg (mentioned elsewhere), but my Dock has disappeared, can't make it come back by trashing the dock prefs in the library. Furthermore, I cannot configure Exposé at all, it won't allow me put items into the four corners of the display. And lastly, command-tab won't allow me switch between open applications.
These problems are unique to one account on this machine. A fresh insall doesn't make these problems go away.
Anyone out there with any solutions?
Thanks, Hugh
iMac 2 GHz Intel Core 2 Duo, Mac OS X (10.5.1), 2 GB ram