I have several problem with studio 15. First is choppy playback on internal dvd drive.

Second problem is flash player. Whenever I watched youtube or any video streaming site my laptop would suddenly froze.

 

If anyone have any solution to my problem I will be greatly appriciated.

My laptop spec is

Windows 7 Professional 64-bit

i7 720 Q

Optiarc DVD+-RW  AD 7640S

ATI Mobility Radeon HD 4570

Any addtional information please ask. I really need your help.

thank you