I can only help you with #1)
change the resolution in the Xorg.conf.pluto file and then use the web admin to change it for the orbiter to the same resolution.
open a terminal type
Type in your password and let it run.
once that is finished type
and it should give you a list of all files. I think it is located in /etc/ but I can't remember and I've since purged the install.
Once you have the location type
sudo nano <path to the xorg.pluto.conf>
and you should be able to navigate that file pretty easy like you would a normal text editor.
Once all that is dine you will have to go into the web admin and select Orbiter in the left menu.
On the right side there is an option for the resolutionx resolutiony/refresh
should look something like this:
Change that to your resolution and Select the option to "Refresh this orbiter and reload the router"
that should be your resolution to a workable one.