1. Kernel used to install had oronoco stuff compiled in. Your os kernel probably doesent
reconfigure and recompile your kernel. If you dont know how better learn
I peronally think every linux user needs to know how to do that. Plus it solves alot of issues with file systems / hardware
2. You probably gonna have to play with the stuff in xorg.conf
look for a section called screen
even better go into a consol su to root and type /usr/X11/xorgconfig
follow the prompts they are pretty self expalinitory.