I Can’t Uninstall a Game through Add/Remove Programs Tool

Hello,
Last week I installed "Need for Speed: Hot Pursuit" on my PC.
But I don't know for some reason, the game was playing very slow on my computer. So, I decided to uninstall it. But when I tried to Uninstall it, using the Add/Remove Program Tool in Control Panel, the Name of the game was appearing in the Add/Remove Program List, but "Uninstall" Button was not appearing. The Strange thing is, Need for Speed: Hot Pursuit is the Only Program, for which the Uninstall Button is not appearing. It is too frustrating because the game is occupying more than 6 GBs of my Hard Drive. I really need your help. I'm using XP.
Please Tell me:
- How can I Uninstall it,
- How to Bring the Uninstall Button in Add/Remove Programs Tool, when it is not appearing.
Thanks.
