Hi I use 2 screens at work but only 1 screen at home. when I open QB at home, it shows as open on the task bar but it doesn't show up on the laptop screen?

If I right click, I see a window open but when I click on it, nothing happens.  thus I can see its open, but I can't get it to show on my screen. its like it thinks there is another screen connected. but I check in my control panel and it shows only one screen is connected.