Ok you are right. when I run it on api level 10 no error appears, but nothing is displayed... I/monodroid-gc( 376): environment supports jni NewWeakGlobalRef best regards -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Error-Emulator-OpenTk-tp5432528p5444083.html Sent from the Mono for Android mailing list archive at Nabble.com.