Hi Jay, welcome to the forums.
Unfortunately your card is probably the issue here, as it is below the recommend system requirements. Upgrading to a newer card MAY solve your problem, but as VinSun said previously, the game is very graphically intensive, and such needs a beefy card to handle the graphical effects ect.
Could you please attach your system DXDIAG report please?
Click Start > Run. type in dxdiag and press Enter. You may see a popup asking about WHQL drivers, click Yes/Ok to proceed.
In the window that appears, click the button that says Save All Information, when the Save Dialog box appears, save the file to your desktop. To upload the file here, click Additional Options underneath the reply area and choose Browse near Attach. Browse to your desktop, click the file and click Open.
* Windows Vista and 7 users need to press the Windows Key + R to access the Run prompt.
You can then post your reply with the file attached.