After some days the kext for my x700mobility is still working i connected a monitor, rebooted and got the display only on the monitor, but thats ok. Also i tested several resolutions on it: eg 1280x1024,1600x1280 ... all of them are working fine (of course there is still mouse tearing and the 60hz problem).
WoW is working as well, very smooth even with 4x antialiasing (btw how can i display fps?) . After quitting the mouse cursor was still there. I installed Keynote and started a short presentation with a 3D cube rotation between two pages. Back to the gui, the cursor was absolutly messed up
There have to be some more similary checks in this or another kext. Do you have an idea where should i start tracing the kext?