Now, I must say, I'm a little annoyed at how easy it was to break OS X.
I think there should be better controls in place, especially for the
Finder app as it is the crux of the OS and when it locks up, the OS is
pretty much useless (yes, you can't even open Terminal).



It all started after I'd installed two apps - OS X VNC and Virtue
(Virtual Desktops). I had configured Virtue and had it working nicely
and I then thought I'd better reboot the machine to see if it starts up
that way. The Finder would lock up immediately with the psychadelic
spinning pin wheel and then nothing would respond, the desktop, the
dock, nothing.