HI I have a extrange error, when I do some test Graphics, like a box, and use whit Grabsprite for save like image... I don´t have collisions in Palm Pre, in Windows Works... when I changed this boxes made whit Grabsprite for real graphics... like a .Png all works, perfectlly...
I only test in Palm pre... perhaps in Android or someelse device this error occurs too... I´m not sure about this... only for advice...
palm pre 1? Very bad. Maybe the alpha information can't be read.
Please use CREATESCREEN/USESCREEN instead of grabsprite.