ok first someone has reported a regression and after somes research i can say that i need to rollback to old google sdk, coz the current one gives somes random results and make some problem with many games.
about the white problem in opengl, it's the textures that are destroyed by the garbage collector of the java virtual machine.
especially when you rotate the screen or access the menu, android do that to free somes unused memory... it's what it think, but it's a mistake. i need to find a way to avoid this. this happen when the free memory is limit especially when you use the boost gl, which is by default to normal.