AutoCAD for Mac

[#1]

Hi,
i've bought on January a new MacBook Pro 8,2 with 2,4 GHz quad core i7 processor, 8 Gbram, AMD Radeon HD 6770M 1Gb video card. When i start my autocad (education version) some issues with the graphic of my screen begin to appear, in particular when i move between different screens (if you know Lion you can undestand me); it seems as the image of the new appearing desktop is coming with parts of himself more slowly, it is not fluid as it must be. When i close autocad the problem disappear so that it is really only an autocad problem.
i hope someone can help me.
Thank you,
Valerio 

[#2]

hye , i've the same issue ) if we can call it issue, when i shift to another screen it, it seem liquid. Exact?

[#3]

Same here you mean that you get screen tearing when swiping desktops with autocad running. this program is so half baked it's unbelievable they've released it in this condition.