I totally agree with Gareee. More video card memory is very helpful for OpenGL preview. When your working with multiple figures, larges scenes, a good number of props/items in scene then more video card memory is very benificial. I upgraded from 256Mb to 512Mb and OpenGL is working smoother now and as Gareee already stated the preview looks closer to the final render.

With 256Mb at times a number of items got grayed in OpenGL due to lack of memory on the video card, now all shows up correctly.

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk