How to deal with a geek who knows a lot about a RPG setting

I've run into this with a person in one of my RP groups, who knows a lot about history.
The way to stop someone like that from giving you a hard time, is to know at least a fair amount about the place/time that your role playing in. And you can always tell him/her that it is YOUR game and you can do what you like with it. If that still doesn't work, try talking one on one with him/her, saying (diplomatically) if they would PLEASE give you a break.
And that worked for me :)

Simon

Hey Guy's!

Hey guy's! Sorry I haven't posted in a while (technical difficulty's.)
I don't have much to post today except the D&D website has a new look! Check it out!
But go to my Youtube channel to see some cool role playing (and other) stuff, a link to it here! http://www.youtube.com/user/14allandallfor1.
Also check out my friends blogs.

Galaxy
Rose
Untadaike (My role playing and filming pal.)