here are my results.
I tried your solution, but there weren’t any options saying accumulation buff.
— I didn’t have any opengl Page so to speak.
I asked ATi support about the problem and they told me to update the CCC (catalyst control center), so i reinstalled the drivers and the CCC and now it’s working properly again!
I’m still thank you for the quick response on the support. =)
And i hope this issue helps some other guys having this problem in the future.