Both video and sound up and running. After trying several times, I installed the latest Android 3.2 OS (3.2.78) and Slingbox's latest Android Tablet Slingplayer (18.104.22.168).
Once updated, my Archos 80 G9 now gets excellent digital video from both my Slingbox Solo's on the road. Also, my Slingbox remote is a realistic Comcast remote which functions pretty much like the one I use at home. This remote is a great feature, because the Slingplayer application I use on my iPhone is difficult to use and to complex to change channels or view my saved shows. For those of you who have chosen the Archos 80, let me say it was a perfect choice as it runs all the apps well and with the Slingbox Player functioning, it is a good product.