I'm not sure about toggling fullscreen, but resizing the window using the new Minecraft launcher under OS X 10.6.8 causes a crash and sometimes a kernel panic. (Also, I tried the suggested manual LWJGL updating and that did not resolve the issue.)
Edit: Oh yeah...suggesting a possible tip that might help others: I know it's odd and only a temporary workaround, but if I drag and resize the window (larger) really quickly then it won't crash.
Kevin Olson
I'm not sure about toggling fullscreen, but resizing the window using the new Minecraft launcher under OS X 10.6.8 causes a crash and sometimes a kernel panic.
(Also, I tried the suggested manual LWJGL updating and that did not resolve the issue.)
Edit: Oh yeah...suggesting a possible tip that might help others: I know it's odd and only a temporary workaround, but if I drag and resize the window (larger) really quickly then it won't crash.