As a benchmark, I am using an Archos 80 G9 running Android version 3.2.78 and SlingPlayer for Mobile Android Tablets Version 220.127.116.11. I am using two Slingbox Solo's. I see you are using a different version of the SlingPlayer and not sure whether yours or mine is the latest, but I am not going to change what isn't broke.
My tablet did not operating with video (only audio) until the upgrade of both the Slingplayer and Android firmware. Hope this at least shows you what versions do work.