OR.. you can go to www.systemrequirementslab.com , its a website that tells if software mostly games will be compatible on your comp. Just click on Can you run it? and itll do its thing and then it gives you a report and it tells which gfx card you have. If it says XT then you have an XT.
ok, LOL, that didnt help the matter....our survey says, "XT" ding ding ding ding!

Im off to bed now. Have fun working out whats going on lol