Controller input issue driving me crazy

[kingofcrusher]

Why won't the Coleco recognize button 2 when you're pressing diagonal up/left? I've tried using both my own input routine and the Coleco bios routine and neither will poll button 2 when UP and LEFT are held. I've even watched a few commercial game's RAM addresses where they hold the button press and it won't work either which leads me to believe this is some issue with the Coleco.