I currently have an ATI Mobility Radeon HD 4200 series in right now with only 256 mb memory and I wanted to know if I could upgrade to something like 500 mb or preferably 1gb. I've heard that some models of notebooks can't be upgraded, I'm running an acer aspire 5552 but I'm a little confused on how I could go about upgrading the graphics to run swtor better. Any help would be appreciated.