Cannot change refresh rate

[famicommander]

I just installed and finished the updates about an hour ago, and I cannot seem to change my refresh rate. The GUI only gives me two options: Auto and 0.0.

I want 75hz. How do I edit my xorg.conf file in PC-BSD?
# Xorg.conf file generated for PC-BSD

Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
Option "Clone" "off"
EndSection

Section "ServerFlags"
Option "AutoAddDevices" "False"
Option "AllowEmptyInput" "Off"
EndSection

Section "Files"
ModulePath "/usr/PCBSD/local/lib/xorg/modules"
FontPath "/Programs/fonts/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/cyrillic/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/TrueType/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/webfonts/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/misc/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/TTF/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/Type1/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/CID/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/75dpi/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/100dpi/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/dejavu/"
FontPath "/usr/PCBSD/local/lib/X11/fonts/local/"
EndSection

Section "Module"
Load "ddc"
Load "dbe"
Load "extmod"
Load "xtrap"
Load "freetype"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbVariant" ""
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/sysmouse"
Option "Buttons" "6"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "PTS"
ModelName "3db"
HorizSync 30.0 - 86.0
VertRefresh 50.0 - 160.0
EndSection


Section "Device"
Identifier "Card0"
Screen 0
Driver "vesa"
VendorName "Generic Vesa Driver"
BusID "PCI:1:0:0"
EndSection


Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
EndSection



I am using an ATI Radeon 9200. I'd like to at the very least change the refresh rate, and if possible use the correct driver. It says I don't have write access when I try to edit the file. So, here are my questions:
1. How do I open the file with root access?
2. Do you think manually typing in a different refresh rate would work?
3. Is the right ATI driver already installed? If so, how do I activate it? If not, how do I install it?

Thanks.

[famicommander]

Never mind, I figured it out.

Unix-like systems are not foreign to me (I've used Linux, PPC Linux, Solaris, and Mac before this) so it was only a matter of time.