I've just started using Elementary OS, and I'm having a bit of trouble with the resolution saving. My monitor/tv's native resolution is 4K, but I prefer to run in 1080p. When the login screen boots up, it's always in 4K, then when I login, I have to change to 1080p, it never saves. The other thing is that when I change the resolution to 1080p, the mouse cursor is huge because it is the 4K mouse cursor. Could anyone give me a bit of help? Other than that I'm pretty happy with the operating system as a whole. Few bits here and there but overall okay.