Impossible?! My computer's more than 5 years old and I could run Maple Story fine! Now Elder Scrolls Oblivion (which is state of the art brand new) nooooo chance whatsoever...
Now assuming you use Windows XP I'll describe how to check your graphic's card...
Go into Control Panel -> System then change the tab to Hardware -> Device Manager and it should be under Display Adapters...
I *think* that's right. I vaguely remember checking it earlier this year for Oblivion.
My graphics card is built into my computer *rolls eyes* which, like i said, is probably a little more than 5 years old.
If Maple Story isn't working just fiddle with settings and such until it does (like I said, when I played it, which was admittedly around the beginning of the year, it worked fine)