ProtocaseDesigner.com

Some video card combination have difficulty with OpenGL.

If you are experiencing odd behaviour in the application, one thing to try is lowering the level of acceleration provided by Windows. This can be done through the display properties / advanced tab. In most cases, lowering the acceleration level does not dramatically impact the usability or performance of the product.

Steve M
PD Lead Design

On some notebook mobility chipsets with integrated graphics (notably ATI, but others too), we are seeing another issue affecting the depth buffer that may prevent you from opening a face.

In addition to lowering the acceleration level, forcing a redraw might also help in some isolated cases.

We're working on a potential workaround.