ilmcuts you shuld do seome resarch on why explorer sets to high priority (on xp) with litestep and on normal when explorer is shell, I mean I'd imagine EVERYONE using litestep would have that problem, the thing is took me a while to notice it if explorer is set to high and it hits 90% (dragging and exploring) music delays.

I am just saying that this is something to be considerd for you developers.