I ran across a frustrating bug when using a GefenPro as an external DVI Matrix Router with an x20 and an M2C-50 console.

When going idle for an unknown period of time(more than 1 minute, less than 10), a bug occurs. Recalling Command keys works fine, but function keys cause the console to hang and then loses connectivity to the spyder. It then re-establishes a connection and fires all the buffered function keys sequentially.