The problem is resolved by giving an audio input in my xenarc!!!
I now have 2 other problems...
When it is automatically switched to AV2 it has an OSD saying AV2 Valid.. It stays ALL the time on (when it is automatically switched).. Can I do sth with this??
Also I have a 4 meter (aproximatelly) cable, which includes the VGA,AV1,AV2, audio.. When I use this instead of the standard one (about 1 meter) some vertical lines appear on the AVs.. So, is it better to use the 1 meter cable with a VGA extender and AV extenders??
I would appreciate any opinions!!!
And sorry for my English!!!