I used Droid Tweaker v.5 to set it to 160 and reboot. Didnt like the way it looked, so I tried to set it back, but every time i reboot my phone it just got smaller and smaller.
I found the /system/build.prop file and tried editing that (which was weird because the file still said 120 even though im probably at 240 right now. Nothing
Even tried LCD Density Changer from the market, but that does nothing.