problem while playing gAME

i have sony vaio vpceb16fg model, with ati mobility redeon hd 5650 .....my games r shattering during gameplay after 5-6 minute,in usually all the hd games,even on low resolution,,,,i have done everything with ati control center..but nothing happened..........
problem: screen shattering with sound echo and crapy noice of game sound with interval like flairing of sound......this is happening with intervals ,initially 5-6 min after game play then in every min
plz healp me !!!!!!!!!!

 

Cant understand what you mean ?

Has that happened before ? If so when?

Try changing Drivers ?

 

what's the problem with msi afterburner? -.-

 

i have changed the driver 2-3 times before.now i have unstalled the driver and using windows update for ati hd 5650 as driver....
problem is when i start the game it continues for 5-6 min without any problem....then after graphics become sticky and flairing of sound for short inteval (5-10 sec) then again become normal for 2-3 mins then again problem occurs for some sec....it continues in such intervals......plz help me..thnx for quick reply.......

 

i havent use this softwere before and dont know much abt this softwere. i have downloaded this softwere as a hope.....i just want to know that there is any solution for this problem......

 

plz help me if u can.................thnx

 

in an easy way:game periodically freezes for 2-3 seconds from time to time