slow 3D navigation, after new installation

 From:  lina
hi guys

after a new installation on my PC. (windows, etc) MOI is working very slow.
I have an ATI X800 pro, driver version 7.8

maybe it depends on the new BETA_August, last time i was working on the BETA_March. Anyway the BETA_March is expired, so i can't compare it.
i also have the newest directX 9.c

i dont know, if MoI is using Opengl or DirectX

please help me guys, to get back to the fluent work as before