Guitar hero III problem
 

This problem happened to me with GH Aerosmith too, but i got GH3 legends of rocks and did the same.

I've installed it and everything was fine, i played for 3 days until i've decided to change the graphics settings to a better ones. Then I couldn't enter the game anymore. (it says windows has stopped working and will be closed)
I unistalled it, and installed again from 0, but it's impossible, I can't play anymore.
I've try the patch to low the requirements but it doesnt work neither.

Sorry about my english and my lack of pc knowledge, im a 27 F spanish speaker, hehe.

thanks in advance!