Yea, I'm curious as to how a computer with a 4800 series Radeon can't run Railworks.....I have a 3800 series and a quadcore with 8 GB of RAM and I run Crysis at 1024x768 at 40 fps.....
Yeah, that was what was making me want to return it.(I got the 1GB Card so I wouldn't have any problems using dual or triple display). Now windows reinstalled and everything is working smoothly, just gotta add in some more RAM.
More RAM wont make that much of a difference. Certainly for what you are using anyway
Oh, well for having several applications open at once it will help there, but not really in overall performance. I have the Intel H57 chip, which is upgradeable to Core i5 and i7 I believe, so maybe in the future I'll do that. At this point It was kind a budget workstation system.
Open the task manager and see what amount of RAM you have. Is it DDR2 or DDR3 RAM?