No problem.

I had an odd error once that didn't result in a crash, but totally screwed a texture up. Accidentally tried drawing a 24bit image as though it had an alpha channel and cut the visual size of the image roughly in half - while making a veritable kalidascope of colors. Took me a few seconds to straighten it out.

So what happened? I'd like to understand the gist of the cause just in case I encounter something like that myself.