Several components of the CSLU Toolkit use OpenGL for their graphics display. Depending on your computer hardware, these displays may or may not take advantage of hardware acceleration for OpenGL. Most 3-D video cards made in the last year have support for this acceleration. Getting OpenGL acceleration working on your computer can be an arduous task.

If you are using Windows NT 4.0, Windows 98, Windows 95 OSR2+, or Windows 2000, OpenGL should have been installed as part of your operating system. If you are using and older version of Windows 95, you'll need to get copies of two DLL files: GLU32.DLL and OPENGL32.DLL. These files must be somewhere on your system path. You can get these files from the Microsoft FTP Site.

You'll also want to make sure that you've installed the latest video drivers for your graphics card. Please check with your computer or video card manufacturer for these drivers. Most companies provide them free of charge on the Internet.

We've found that some drivers and cards have incomplete or flawed implementations of OpenGL. Below are some instructions on how to get things working with these troublesome cards!

The latest Diamond supplied drivers under Windows 98 crash consistently when trying to run any of the OpenGL Toolkit components. A typical symptom is a blue screen with some sort of "VXD" error. One known driver version which does NOT work is: Nvidia v 4.10.1998

The latest reference drivers for Nvidia-based cards can be downloaded from http://www.nvidia.com. These drivers work fine with OpenGL, though they have an acknowledged bug which causes Baldi to display half of his palette. To avoid this problem, select the "Vertex Array Workaround" in the Baldi configuration dialogue.

The latest known working version of the Nvidia drivers is: v4.11.01.0337

These cards have reportedly given the same behavior as the V330. Try downloading the reference drivers from Nvidia to fix it.

This video card is becoming popular in high-end laptop computers, and is one of the first portable display adapters to provide hardware OpenGL acceleration. The final release of the drivers is not available, but ATI does have a beta driver that you can download. The hardware acceleration works in 16-bit color depths only.