Live8 and mac book pro

[Bebbo]

Hello,

I own a MacBook bought in 2008 and i have a problem with Live 8 when i am running it on an 1920x1200 on an external screen. Live screen is really slow and sets off, and is impossible to work with it. I think it is normal due to the poor performance of my graphic card (144mb of DDR2 shared).
I am thinking about buying the new macbook pro 13" (2.4GHz Intel Core 2 Duo, 4GB of 1066MHz DDR3 SDRAM, NVIDIA GeForce 320M graphics processor with 256MB of DDR3 SDRAM shared with main memory), Do you think that i will still have the same problem?

thanks.

[Bebbo]

anyone with a macbook pro 13"?