Disable drop shadows around windows or the menu bar on OS X
Solution 1:
Yes! It's working perfectly on Snow Leopard (Mac Mini Core Duo @1.83 GHz).
@Lri After launching Shadowkiller, it just toggles on/off the shadow visible status and then quits itself… Never stays open.
Solution 2:
Unsanity's ShadowKiller is in fact working in 10.6, I am using it right now. (Don't know if it causes system instabuility or something).