Hi
 
I am currently using autocad 2010.
 
I seem to have lag when i toggle between multiple drawing windows in the same cad app. I mostly use Ctrl Tab to flip between them if its up to 3 drawings, more then i will use my mouse and in the menu bar select window and then the drawing. it can take between 2secs to 5secs to change between drawings sometimes, and these are simple 2D drawings, a file size between 1 and 5megs.
 
For 3D modelling I dont seem to be having much lag and in that mode it is much better  speed than autocad architecture 2011.
 
I dont know, for me to flip through, constantly between 4, 5 drawings and taking 5 secs a turn seems awefully much.
 
Not sure if this is graphic card problem or what?
 
Any thoughts anyone??
 
Using:
Windows 7 Ultimate 64bit
NVIDIA Quadro FX 580
AMD Phenom II X4 965 3.4g
20 Gigs of Ram