Good to have you back BA, and great to see you having a go at C

I tried them on my 1.6GHz laptop.
With the cubes I get 60-70fps. They look lovely

Unfortunately the fire one crashes, and I get this in stderr.txt
Fatal signal: Segmentation Fault (SDL Parachute Deployed)
I suspect somewhere you are reading or writing some memory you don't own.

A quick tip - Please don't put sdl.dll in windows\system32. It belongs in the folder with the app. sdl.dll gets updated pretty regularly, and I suspect some versions aren't compatible with one another. For Vista users, it's not really possible anyway.

Jim