You might have hit the nail on the head with the yeast angle. Oddly though--which for me with my approach, odd is fairly common---he culprit was probably my root beer instead of the regular brews. I brewed a root beer a few months ago, from the real roots and all that jazz, and I wanted to ensure ample carbonation--because my previous one carbonated with CO2 didn't have much of a head on it--so I made a big yeast starter, allowed the fermentation to get going big time in the keg, then cold crashed it. Well, it was carbonated alright, and it never cleared up like I hoped it would. But I drank it anyway--it was mine after all--and the taste was passable, so I wasn't about to throw it away. Yeah I was probably ingesting a lot of yeast, and blaming the regular beer. So this morning, since it was getting near empty, I opened it up and poured out quite a sloppy mess--ummm good. So, thanks for the posts everyone. As is quite obvious now, you helped a lot.