Light Level Setting unstable-Bugs ?

[gcross]

I am trying to edit lighting styles for models in the edit wondow (not studio). On one only or several assembly models at once I am finding that the Style & Stnd/Lighting Editor has stability issues during editing.

After a number of edits to light settings using the scroll bars to change the lighting location, various  buttons start to dissapear or turn black & the dialog fails to function, sometimes locking up Inventor.

Only solution is to close down & restart Inventor. Subsequent attempts to reopen & do it again result in same behavior if not worse.

Is this a know issue? Any fixes in the works?

Gary

[gcross]

Heres an image showing a dialog box with an error meaage that is garbled too. It says A required resource is no available or something like that.

Looks like it could be a graphics issue except for the error message.

Any ideas what is wrong?

Gary

System Win 7 latest ver.

Office 2010

i7

nVidia Quadro 4000

12GB RAM

4x 10K Velocorapters RAID 5