I have been getting this error recently.
I've checked the forums and found many solutions of which I have tried all of them and none have worked.

Things I have tried:
-Updating Video Card driver
-Reinstalling Java
-Modifying the height and width minecraft registry values
-Changing the Java directory in the run.bat film from auto to the actual Java directory

The client has been working before, it hasn't been working every since I got unspectated. (The account that got unspectated is spacegiraffe not wayzey1)

I don't know how to fix this and I would really appreciate some help.
If you feel like lending a helping hand please comment below.