Re: VIA Chrome 9 HC IGP 256MB problem
The Via Chrome card in your laptop is a shared memory card and unfortunately for you, Chrome is actually THE weakest vpu on the market right now (true). It performs very poorly in 3D gaming. My little brother's mobo had it built in and he even had trouble running Quake 3 based games like Jedi Knight II.
To answer your second question, the reason your system properties reports only 768mb of ram is because your graphics card is taking up ~256mb solely for itself. If you're able to adjust this it's probably in your laptop's BIOS.
Via Chrome 9 IGP is really just not meant for gaming. It's okay for Windows, movies, and basic games, but that's about it. You'll have to lower the video settings quite a bit if you want to play games.