Macbook 2.1 intel core 2 duo I upgraded my HD a while back to 500GB Hitachi HTS 725050A9A364. Ever since flash video locks up & crashes on me on a regular basis, especially high def videos. Maxed out my memory to 3gb...although it reads 4gb Still have the original intel gma 950 graphics card. VRAM reads 64mb shared memory. This seems really low to me..is this the problem?...if so, how do I increase it??