John, I am running windows 10 and most current version of Arduino IDE. Both WIO Terminals work on my desktop computer with no issues. I have a blank screen on both WIO Terminals when using my laptop and a working program using LCD display running off my desktop. I have loaded Arduino IDE several time on the laptop with no change always have blank screen compiling program on laptop. The only difference I notice using laptop after uploading program to WIO it always ask me on a pop up what to do with drive G: I don’t have a drive G nor do I have a SD card plugged in WIO. Still I have no idea why WIO screen is blank using laptop.