I tried to play the retail COD MW2 on laptop, doesn't load at all. I have an Acer Aspire 5551 with windows 7 Home premium 64 bit; AMD Turion II P520 Duel Core processor-2.30 GHz; 4.0 GB RAM (3.74) usable. ATI Mobility Radeon HD 4200. Is it because of the integrated graphics, or is it because I have a DVD/CD-ROM drive? I tried that site to scan my computer and it wanted me to upgrade my Java to Java version 7 update 55, and though I already have it, it keeps prompting me to update? Any help would be greatly appreciated. Ty