While I find that AMD/ATI has bad drivers, sometime nvidia does have bad drivers too.
You have 2 choice, revert to the previous version or wait for the new version.
thanx for reply, yea i agree, but what i was trying to say, dont you think they want old customer to get new one?, that is called business. i think they are doing same right now, they give update to decrease the slightly performance. update by update.