I've just recently attempted to open a dockzip on Vista x64 and noticed that the window doesn't show correctly.  The screen shot shows how the two buttons are cut off.  
Note: This only happens when a WindowBlinds skin is applied.  I've tested three skins; Diamond, Adamant, Adrenaline and reproduced it with all three.  Unloaded WindowBlinds and tried it with just Aero running and it showed fine.  
Specs:
   Vista Ultimate x64
   Object Dock Plus version 1.90i[b].020
   Windowblinds 6 version 6.00[b].099
