I have just installed the Raspberry Pi Desktop in Parallels Desktop 13 running on OSX. It runs in very low resolution and there doesn't seem to be any way of changing the resolution within the Pi Desktop. I'm trying to install Parallels Tools, hoping this will provide a way of setting resolution. The tools icon says to run "sudo ./install" in the /media/cdrom0 folder. I've navigated to this folder but when I try this I get a message "Permission denied". I've tried to do "sudo su" first but still get the message. Is there some other way of installing the tools or setting the resolution? Thanks.