Blackshot Problems.

Hi guys! I got two blackshot problems now, the 1st one is = When I'm playin' blackshot, when I'm inside a sever, I play then after a while my blackshot freezes for 3sec then it get backs to normal, it's really annoying though. The 2nd problem is = After a while, I entered a blackshot server, when I play a while The games shuts down automatically, and a program pops up, outta nowhere. It says "Application(I think they mean blackshot) is blocked,because of accessing graphics hardware". I'm in a grave danger, I need help, ASAP!!!!!! Thanks. Another thing is I'm using Win 8.
Your's Sincerely,
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