Why cant I run No$GBA?

I mean, I can run it, but every game I try is really laggy. I have 2.39 GHz and 640 Mb RAM, am I supposed to install something else?

You probably don't have enough system power for it. 640MB is not a lot of RAM, what Operating system are you running? (Please don't say Vista!)Also, what type of Graphics card do you have?

Umm, I think its Intel(R) 82865G Graphics Controller. Fast reply, btw.

I believe that is an Onboard graphics controller, meaning it will share your system RAM, making it poor for gaming and emulation.I believe that the root of your issue is the lack of power on your computer. You can try going into the Emulation Setup and changing the Emulation Speed, it defaults to Realtime, Auto, which requires more power from your system. Try the "Unlimited MHz Disaster" settings.

As well as lowering options such as Sound quality, 3D render to no$cash etc.