Ubuntu - Part 4

Wifi setup was a breeze. Ubuntu recognized my SSID and let me select it from a drop down in the networking tools. After entering the encryption key, it connected immediately and worked perfectly. I used the update manager to install the available patches, and moved on to the desktop resolution, which the installer had set to 640x480. Unfortunately, Ubuntu does not seem to recognize that my laptop has several other video modes, and for the life of me I have no idea where this is set - it must be in some obscure X configuration file, and in fact, I haven't any idea which flavor of X is in this distro. Time to start googling for help!