corruption in editor menus

Hi,
I am a new user of Unity 2017 and have run into an issue. The Add Component menu is not drawing correctly for some reason, and there are other minor corruptions in the editor UI. I have restarted the editor and a new project and the problems persist there. It did NOT behave like this for the first day I was using Unity, but now it seems stuck this way. Advice would be appreciated, thanks!

The Add Component menu looks like this:

There are a few other minor graphical issues visible in the editor UI, like flickering and incorrect tooltips:


I’m using 2017.1.0f3 on Win8.1, with a gtx1070

Exiting “Nahimic for MSI” fixes this. Unstalling that piece of crap fixes it more.