Hi, i've a problem with litestep when yz shadow is on...

I see a small transparent rectangle on left-top of the screen, as you can see in this shot:
http://img442.imageshack.us/img442/7277/immagineji4.jpg
I've this problem with any ls theme...
How can i resolve?

Thanks for help!!

I don't see that bug/artefact on my desktop, might be that it turns up on higher resolutions, mine is 1024 x 768.

*offtopic*
Still I don't run Y'z Shadow on my system as it (along with many window "enhancing" apps) screws up my window refreshing (refresh of the previously overlapped area - "cliprect" - is often delayed enough to destroy whatever value the sofware would otherwise gain/retain).

I resolved the problem unistalling objectbar ;)