Ok, I know everyone is on the edge of their seat for my next update

so here it is:
Updated my 150mce drivers, restarted. Could stream live tv, but it crashed the mce shell on my home box (it's supposed to gracefully close it, but it took a header).
Restarted MCE shell and orb service, could stream recorded tv. Buffered like crazy....started watching recorded tv on my MCE box and through orb and everything went to hell. I guess my box isn't powerful enough. Restarted again and MCE box kept playing DVD in drive...it even continued playing the audio from it when I switched to LiveTV! Ejected DVD and everything is back to normal.
I think my box isn't powerful enough to act as a dedicated MCE box and Orb streamer. Oh well, maybe I'll upgrade it in the future.