Been away from MS for a while - now I get this - any ideas?
It's a MS solids model although made in AECOsim, currently 08.11.09.829. I downloaded the latest (863 or something?), got this, uninstalled, went back to 829 but still same. W7 64. People have said this can be an Nvidia driver problem - I updated to the latest, 341.95 for my Quadro FX580, but still same.
Most likey this is still an Nvidia driver problem. Check this link to verify using the setting the QV_D3DVERSION=9 communities.bentley.com/.../26279.display-problems-stray-lines-in-dgn
This issue seems to come up on the board at least once a month. It's possible you may have to roll back to an earlier version of the driver. Unfortunately BSI doesn't publish a list of Nvida drivers with known problems.
Unknown said: QV_D3DVERSION=9 is indeed a viable workaround for the V8i generation
It's a debugging aid rather than a workaround.
If you set QV_D3DVERSION=9, and that eliminates the problem, then you know that you have an NVidia graphics driver issue. However, you're telling the graphics sub-system to use DirectX version 9, rather than the version 10 or 11 that is probably installed by Windows on your computer. The result will be poorer graphics performance than if you were using DirectX 10 or 11. 'Poorer performance' doesn't necessarily mean speed: it might be that certain shading algorithms are not supported, with a consequent loss of visualisation capability.
The solution is to install a version of NVidia's driver software that works correctly. If you have a new graphics card, that is likely to be the latest NVidia driver; if you have a nine-year-old graphics card, then you are right — the latest driver may not be the final answer. In that case you must find an NVidia driver that works correctly with your graphics card.
Regards, Jon Summers LA Solutions
RegardsAndrew BellTechnical SupportBentley Systems