No buttons on main menu

Hello MPGH, ive searched for this issue but cant seem too find any help.

I recently installed Warrock on my little bros computer so we can do 1v1s and stuff. hes got a older compaq with a 1.5ghz P4 768megs of ram. i put in my old Nvidia Geforece4 mx440 (which i know plays warrock since i used to use it) but when you start up the game, it loads up and the ad window pops up like normal but theres no window borders or buttons anywhere. i can exit the window and you can hear the beep from the buttons but theyre not there!

lol i cant figure this put. i installed .net 4.0, direct x and video drivers are up to date. Any help is much appreciated!

Thank you