I'm running ADT as Autocad 2006. I've just bought another new machine and installed Autocad (full install).
The problem:
When I go to switch between drawings (nothing very big, simple linework and text) there is a defininte lag (3 to 4 seconds).
The same thing happens when I select ISOLAYER or the UNDO command.
I've found similar threads but they all seem to deal with drawing file content/size. None of these apply as it happens on a fresh drawing. There's a variable here to be changed but I can't seem to find it.