VolFix supports viewing charts via OpenGL.

The mode is activated in Market Watch - setup - Global Options - Use OpenGL = ON.

In OpenGL mode, the terminal works much faster and much more responsive.

Not all video cards support OpenGL. Here might be errors on Intel and ATI video cards.

Before activating OpenGL, please make sure you have the latest video card drivers installed.
You can download your video card driver from the official web site:

To get video card OpenGL information use OpenGL Extensions Viewer.

If you have activated OpenGL and and error has occurred in VolFix, please either disable OpenGL.