Most netbooks including the Acer Aspire One (zg5) have a native screen resolution of 1024x600 which can be a pain with some applications that require 1024x768 minimum … some setting dialogs also seem to be larger than the screen allows.
Well you CAN get Peppermint 4 (or any distro based on >= Ubuntu 12.10) to give you 1024x768
This should work for Peppermint 4 … and possibly for a FULLY updated Peppermint 3 (I can’t currently test it in Peppermint 3 … Ubuntu 12.04 based distros used to need a patched version of xorg but I think the patch was added in ubuntuupdates)
Run this in a terminal:
xrandr --output LVDS1 --panning "1024x768" --scale "1x1.28"
you can go back to 1024x600 with:
xrandr --output LVDS1 --panning "1024x600" --scale "1x1"
Once you’ve tested that in a terminal AND IT WORKS … if you want to autostart that at bootup …
Run:
mkdir ~/.config/autostart
then:
gedit ~/.config/autostart/monitor-adjust.desktop
when an empty file opens, make it read:-
[Desktop Entry]
Name=Monitor Auto Adjust
Comment=Change LCD resolution to 1024x768
Exec=lxterminal --command xrandr --output LVDS1 --panning "1024x768" --scale "1x1.28"
Terminal=true
SAVE the file, and log off/on to test.
BE SURE to test it in a terminal first, because if anything goes wrong a reboot will put you back to 1024x600
[EDIT]
If you have any problems with the wallpaper not stretching … try making the commands:
xrandr --output LVDS1 --panning "1024x768" --scale "1x1.28" && pcmanfm --wallpaper-mode=fit && pcmanfm --wallpaper-mode=stretch
and
xrandr --output LVDS1 --panning "1024x600" --scale "1x1" && pcmanfm --wallpaper-mode=fit && pcmanfm --wallpaper-mode=stretch
obviously adjust the “Exec” line in the autostart file accordingly.
You can even go nuts and go to 1152x864 if you wish…
For 1152x864 the command would be:
xrandr --output LVDS1 --panning "1152x864" --scale "1.125x1.44"
personally I think that’s too much … but I’ve added it here, just to show it’s possible 
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