Thanks guys. Yeah I turn mine inside-out as well. I've been cleaning them in bleach for about 4 years as well. I actually found that washing them in hot water was worse for them deteriorating than washing in bleach ever was - the plastic rings got cracks in them after a hot wash.
The heavier cycle did the trick last night but it was just sorta disappointing to me I had to wait 1.5 hours instead of 15 minutes like with the older non-Energy-Star-Rated behemoth I had before.
The express wash was only about 30 minutes but just didn't get the sock clean (but now I wonder if it's because I only did one sock).