I need a crash log.
Pasted Log HERE !
I used this method off of a Wiki (forgot link) to generate this log (since the game bombs out without error messages):
create a batch file, but this time use the following code:
java -Xincgc -Xmx1024M -cp Minecraft.exe net.minecraft.LauncherFrame > log.txt
this will create a file named log.txt when run. after minecraft exits, the log will contain the same information the other methods should, without a limit on the number of lines.
If this is unhelpful, please tell me what method you'd like for us to use and we'll reproduce the error while running under that mode.
I investigated the log several times looking for clues and I can't find anything pertaining to the issue. And all we did was launch the game, reproduce the crash and paste this log here.