Check and make sure your theme doesn't have the spacebar as the launch key for QL. If it does set the launch key in QL (QL Options) to none. Then you shouldn't have the white screen when launching QL anymore. There is an issue when when the theme is trying to launch QL with the space key when QL launch is set to launch itself with the space key.
Check and make sure your theme doesn't have the spacebar as the launch key for QL. If it does set the launch key in QL (QL Options) to none. Then you shouldn't have the white screen when launching QL anymore. There is an issue when when the theme is trying to launch QL with the space key when QL launch is set to launch itself with the space key.
I had the same problem and contacted the developer. Be sure to set your homescreen hotkey to "none" in the QL options and "save." Problem should go away. I also noticed that I had to do that each time I switched themes. Even if your homescreen hotkey is already set to none, go back in and click it again and save and the problem should go away.