Not sure whay this happens, but whenever I launch ZBrush 3.12B it never opens until I click on the desktop. I am running the latest updates of OSX 10.5.8 and I have lots of ram 12 GB but every time I launch ZBrush the UI doesn’t open (the screen remains empty) until I click somewhere on my desktop and then ther ZBrush UI appears.
Anyone know if this is a bug or anyone else experience this? 
See if updatig to version 3.2 helps.
http://www.zbrushcentral.com/zbc/showthread.php?t=072584
Richard
Richard, thanks that worked.
If you don’t mind please confirm that 3.2 now opens with no “What would you like to do” screen and now just opens with a default sphere in the workspace.
The start up you get is correct for 3.2
I went back to the usual 3.12 startup screen by copying the DefaultZScript.txt file from ZBrush 3.12b (ZScripts folder) to the ZBrush 3.2 ZScripts folder.
Richard
Thanks Richard! 