Back from a week's leave and all ready to go when I get ...
"Cannot start microsoft office outlook. Cannot open the outlook window"
Nice error message hey:)!
I tried a pile of the obvious stuff to no avail when I finally found the following forum entry from a guy called Dan Thomas (on the third search page!)
Run outlook.exe /resetnavpane
I guess it was obvious that the error would be to do with a navigation pane on the outloook UI - for goodness sakes!
Anyway, thanks Dan - wherever you are!!!