Hello everybody, I have some problem with opengles on symbian os. I'm a new comer in opengles on symbian os. My phone is nokia 6260 symbian os 7.0s I try to compile sample code: ......\serie60ex\Opengles\shadows I have compiled the opengl sample code successfully. And I also made shadows.pkg -> shadows.sis successfully. But when I copy shadows.sis -> phone and install it, the phone read that "this app is not compatible for this OS". However the install is still successful. But I cannot excute this app. So Can u help me if u know about this problems ? ps: i cannot use: abld build armi urel i only can use abld build thumb urel so thumb only have 16 bit -> problem???? Thanks.