It's come to my attention that the 480p versions of episodes 05 & 06 are failed encodes and somehow slipped by us before release. You may not want to waste your time downloading them. We can't get them off of our website right now, but will shortly. We're working on it.
If you have issues with the 720p, it's probably because you're using CoreAVC. Simply disable it. If you're using CCCP, just re-enable the h.264 decoding in the FFDShow settings. x264 got updated or some shit and now CoreAVC craps itself.
Sorry for the inconvenience, guys.
We'll clear everything up shortly.
EDIT: v2's for 05 and 06 480's have now been released. Sorry for the mishap, and we appreciate you enjoying our releases. Thanks!