Modeller gets unstable while Layout is running

[BerenB]

Hello!

I haven't been using LW for a while, but now that I need it Modeller is giving me problems. And I already searched the board and found an advise to roll back on the vcard driver. Didn't work, I'm still having the same problem. Please help! :)

Problem Description:

- Appearantly out of no reasion the modeller view update slows down almost to being a still image
- This happens while I'm in a fullscreen perspective view in modeller (textures, wiredisplay I need those for UV mapping)
- Layout needs to run at the same time in the background for test renders

When I quit Layout, Modeller works -- but that's not really an option to me (Max, Maya, XSI all have integrated modelling solutions LW doesn't so I need both running at the same time)

My win XP 32 bit system:

ATI Radeon X1800 512 MB
AMD 64 X2 4400+
4 GB Ram

(Even have x64 here, but a lot of my other sorftware didnt work, so that's also not an option... yet)

I am running the Omega 3.8.231 drivers. Switched back to them, the newest ones had the same problems.

Working with jerky modeller views is really a pain. Can someone please give me a tip how to solve this issue?

Thanks a lot! :)

[BerenB]

Alright, I have additional Information:

I have a dual monitor setup (sometimes that might cause trouble when you try to use acceleration on the secondary monitor, but in this case I have all lightwave views on the primary one, just the render display is on the second one)

When I maximize a view in modeller, e.g. into fullscreen perspective view (textures, wire), it slows down. Now I minimize the view and maximize it again and it works. Sadly only until I switch back to quad-view and want to switch to fullscreen again...

Seems almost as if the vidcard acceleration *stops* when I switch to fullscreen view and only works again once I minimize and maximize modeller.

I tried to manually adjust the OpenGL settings of my ATI, but to no avail.
As said, I'd really be glad if someone has a tip for me, I'm at a loss :(
Thanks.