Well the first thing to look at is the video card on this laptop, it appears from a quick googling that this laptop has an ATI Mobility Radeon 9200 AGP 4x.
Next we need to know what version of directx and windows you are running. Go to start > Run > type "dxdiag" without quotes and press enter. At the bottom you will see version, post that here. If its less than 9c we will need to update it to the latest version which is a free download from microsoft.
Lastly, what game is it? The sims 2 "should" run with those specs
If you have a T&L capable video card with at least 32 MB of video RAM then you need at least:
* 800 MHz processor or better
* 256 MB RAM if Windows Vista, XP, Windows ME, Windows 98 or Windows 2000
* At least 3.5 GB of hard drive space
If you have a non-T&L capable video card (an Intel Extreme Graphics or a Radeon 7000/VE Series) then you need at least:
* 2.0 GHz processor or better
* 256 MB RAM if Windows Vista, XP, Windows ME, Windows 98, or Windows 2000
* At least 3.5 GB of hard drive space
Get the most current driver for your video card. The manufacturers usually have the video drivers on their sites for you to download. Visit the nVidia site, the ATI site or the support site for your computer's manufacturer for the latest drivers for those video cards.
Supported video cards (and the more video memory the better):
* ATI RadeonTM series (7000 or better)
o Radeon 7000/VE series (non-T&L; requires 2.0 GHz processor)
o 7200, 7500
o 8500, All-In-Wonder 8500
o 9000, 9200, 9500, 9600, 9700, 9800
o X300, X600, X800
Which again you should meet. Please post back with that info and we'll see what we can do.
As for upgrading the graphics card in a notebook, this is rarely an option.