G'day All This has happened five times now. While detecting in normal/general I will switch to difficult mode and then get an audio blank - no sound, nada, niets...... There is always the short audio blank with the change of mode but this one just kills the audio all together....... I have to restart the Zed to get my audio back (audio thru wireless module not headphones). It does beep to confirm that it has changed modes, then deathly silence. Anybody else had this problem? Cheers BB