So, after not using it for quite a while I booted up Powder Toy today. I tried to use fire but the fire, instead of being glowy, was just red pixels. Gas was the same way (except in their respective colours). The physics were working the same though.
So, I redownloaded it and everything was fine. Then I turned Velocity Display on and then off, and the same problem happened, except fire was all weird-coloured. Picture below.
Running Windows XP x32 (genuine), Celeron 351 @ 3.2ghz, HD 4550, 1GB ram 134mhz.

Are you in Fire display?
You can change the display mode using the numbers ( Not the num pad )
I'm a retard, I even posted an image with the settings window open and didn't notice that fire wasn't checked. Thanks.
(I also know about the number thing.)
I know. ccc: