It is very unlikely that you would be able to switch out the graphics card in that laptop. It is probably, like most laptops, soldered to the motherboard. This is not an upgrade that any normal person can do themselves. If you want better graphics, you should return the laptop and get a new one.
The only parts easily switched out are the RAM and Hard Drive.
(Note: This is for most laptops. I haven't checked your exact model.)
You're lucky if you have the opportunity to upgrade it. Opening the laptop will void the warranty and risk breaking it, so keep that in mind. I'm also not sure if it's worth $90, but that's up to you. I personally can't help you with your problem though. I'd recommend against attempting to make it work until you are 100% sure. It'd suck to end up breaking it. Good luck with it.