heidisql needs to be shut down before I connect to my secondary monitor

It seems that heidisql gets very confused when a 2nd monitor is attached. It invalidates the whole screen over and over again, and the system just flickers for 3-4 minutes, until it settles down, and I can start working.

• Win 10
• heidisql 9.4.0.5174

Any ideas?

That could be the flicker issue on Win10. Please update to the latest build to get a fix for that, and report back here.