LÖVE

We just started a little project called project monkey. Still learning Löve.
We started out with a main menu containing a image. This image is visible on a pc with an ATI card but not with a NVIDIA cart (the only pc whe have with a NVIDIA cart, so we couldn't test it on an other pc with NVIDIA). However, a map loaded with the Tiledmap loader (can be found somewhere on this form) is clearly visible, only somehow laggy.

Does anyone know what this could be?

Some video cards, especially older ones and Intel GMA chips, suffer from PO2_Syndrome. You'll have to make sure all your images have power-of-two dimensions (1024x512, etc) for them to show up on all video cards. LÖVE 0.8.0 will solve this issue by internally padding non-power-of-two images on systems that need it, but it's not out yet.

That just fixed it!
Thanks for your help!