Win 7, x64, VS 2010. 5 Class Libraries Projects, 1 Main App. Debugger can just ignore the break point. Returned to 4.2.2. Everything fine. -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/4-2-3-debugger-tp5710420p5710422.html Sent from the Mono for Android mailing list archive at Nabble.com.