Strange bug with myGLCD.drawBitmap when called 6 times

Thank you very much, Pyro.

I'm a newcomer to arduino and to programming and I never heard of near/far Progmem before.
You are correct, my sketch is above 64kb, it's almost 100kb.

The idea is to have a look-a-like ipod / smartphone appearance with icons being displayed.

I'll implement the code you've given.

Kind regards,
Nuno