I don't really know how to explain this, I'll just post a screenie.
I have now got GZDoom working on my computer and everything, since I downloaded the latest drivers for my RADEON 7000 gfx card and installed the latest version of GZDoom. But I have no idea what's happened.
Oh yeah. Sorry about that. I've figured out that this happens everytime I pick up an Invulnerability Sphere. When the screen goes back to original colours, the sprites get messed up.
And yes, I'm using .19.
Plus, sorry for the week bump, I should hang round here more often.