TheSalsero

I'm running Cura 4.8.0 and and hit exactly the same problem. I also remember what preceded it and hope my experience below will be useful to the development team and others who hit the same issue. Essentially, similar to Meich, I also run a dual screen setup at home and his solution of using --> Windows Key + P --->then selecting 'PC only' to switch to only one monitor for a minute did the trick and got past the blank screen. My computer is a relatively maxed out Alienware running an i9 with a beefy Geforce GPU. As it may help in diagnosing the fault from the developer point of view what I did immediately prior to experiencing the problem was used the windows key + arrow shortcut to move the cura application to my second monitor with view to dragging and dropping some STLs into it. It then became unresponsive and when I restarted it the splash screen appeared on monitor 1, then the main application screen (just blank gray/white with nothing on it appeared on the secondary monitor and needed to be killed via task manager. I experimented with moving it back across to the other monitor once I'd reactivated my second screen and once again Cura crashes and I can only restart it again using the Ctrl + P trick. Going to unselect restore the position on start now as suggested by another poster. Hope the information helps other users and perhaps the development team of this awesome piece of software!