Hi,
I'm having the same issue described here, with the same type of error message. I figured there would be no point in starting a new thread on the same topic, so I'll just bump this one.
Modpack build: 2.1.0 (up to date)
Operating System: Windows 7 (64-bit)
Java version: Version 6 Update 29
Note: "Use latest LWJGL" option does not appear in options
Description:
I placed a generator and then a macerator directly to the right of the generator, and then the game froze up and went to the white screen.
Placing the generator worked fine, but after I placed the macerator, it attempted to readjust its orientation (as most blocks do, to align the textures the correct way) and the game crashed.
I tried several times to rejoin the server, but only to crash again. When I join, it shows the game for about 1 second, and then transitions to a dirt screen, and then goes white.
I'm not sure if anyone else on the server has been affected by this by just being in the area - I have no way to contact them at the moment.
Error Log:
http://pastebin.com/zvAhNQ8H