Uuuh paralaxes

[ZanderZ]

Maybe Allegro chooses a strange videodriver (like OpenGL or smthg) which can't cope with certain image resolutions (non-power of 2)?

OpenGL isn't strange!

And also in some maps paralax works fine (e.g. Koala :>)

Koala has 600x420, so your (sharkys) theory is incorrect

[Gliptic]

Well, problem found. If you have an alphachannel in the image, allegro will fail to convert the keycolor to 16-bit correctly. The solution is to remove all alphachannels from level.png etc. They shouldn't be there anyway and just takes up space. The reason it works in 32-bit is because I manually remove the alphachannel in that mode. Maybe I will disable that removal so that the problem is noticed earlier.

[Dflies]

Yehii! So I have to change it myself?
Or wait for another release >:0

[Gliptic]

The level authors have to change it. There's nothing to fix in gusanos.

[Eekhoorn]

Will it be possible in the future to have levels with working alpha channels?

[basara]

Probably not, thats too slow. If you desperatelly want something with alpha you can place an object there instead.