Archos 704 WiFi - lockups using dock

has anyone else encountered the following??

Got the 704 in dock and streaming pictures or movies to the connected plasma - 9 times out of ten the 704 locks up and the file list in the explorer menu shows corrupted with a question mark in the file icon (like when the unit does not support that file type). This is regardless of if i am trying to view the files on the plasma or on the 704's screen.

It plays the pictures or movies fine when out of the dock???

Anyone else tried this or having problems???

Cheers