I had a similar problem awhile back (year or two). It is a video problem. The actual cursor is in a different place than what you see on the screen.
Did the 13.0.40 update fix your problem?
The other screen, is it the same spec as the original one or is it different?
Please try this:
Download the latest Studio driver version from here. If there is no Studio driver for your graphic card, use the one, which is available and continue with the same steps below.
Disconnect the computer from the Internet to ensure Windows will not download and install its graphic driver.
Uninstall the NVIDIA driver.
Restart the computer.
Start the NVIDIA driver installation (as administrator).
Don’t install the whole package, use the Custom (Advanced) settings.
Disable everything (don’t install NVIDIA Experience, PhysX, etc.), and keep the video driver enabled.
I believe the problem is having 2 (or more) screens, so here’s what I do to fix it without closing and opening the project.
Change screen settings hitting Win + P on your keyboard. I usually have it on the “Extend”. Try going to “PC Screen Only” and then go back to “Extend”.
That brings the menu back to me!
Not ideal, but at least faster than closing and opening the project (especially orchestral stuff with a zillion libraries )
Hopefully it helps someone!
It’d be nice if someone from the Cubase Support team gave us a hand to fix this🙏
Thanks for your solution!!! I had the same issue with Cubase 14 (two screens and RTX4070ti) and Steinberg couldn’t give me a solution, they even did not have a clue what could be the problem.
I have multiple screens here as well; four to be precise. Also, I have an NVidia GPU running Studio Drivers. I also have the UI scaled +25% in Cubase. I have non-default scaling on the monitors in Windows, two are 125% and two are 150%.
I tried setting the scaling back to default in both Cubase and Windows. I tried starting Cubase in Safe Mode. Neither helped.
I had a similar issue. I reinstalled the studio driver. That helped. The issue was gone. Hope you’ll find a solution. It’s definitely very irritating, especially if Cubase doesn’t start at all.