Right now I'm not using any scripts, just working with models in the engine, but whenever I have a certain model in the level the game will not start and gives me a 'Driver Failure.' This model is fairly old, and it worked before I updated from A5.24 Commercial to A5.51 Commercial. I've tryed re-saving it in MED, but that didn't help. Any idea what's causing this/how to fix it?

Now THIS is interesting. My skin was a few hundred pixels over 2048 in width. I resized it, remapped it, and resaved it. Map runs fine now. Apparently 5.51 has an issue with skins over 2048.

So nevermind.

It is not an A5 or A6 error, or even Conitec in any way...it would be limitations of hardware.

Older video cards do not support large textures. Depending on how old your video card is, you might be limited to as small as 512x512 (or maybe 256x256 for some of the first generation Voodoo cards). Not to mention that they process textures which are not in the power of 2 category slower than they process properly sized textures. With the earlier version of A5, they used a software renderer, which didn't balk on oddball sizes, but it still is not nearly as effective or as fast as the hardware from the actual DirectX interface to the video card.

Also, remember that a texture the size you are using will take up over 4 meg of video memory...and that is a precious resource which you need to conserve. Unless you really need that level of detail, you should probably consider reducing the size of the texture a lot.

My card is a Radeon 9500 Pro with 128mb memory. Whether that was the issue or not, I'll make sure I don't go too high with the skins anymore.