[Gambas-bugtracker] Bug #1501: Gambas IDE Dialogue Windows without Control Buttons under Mint 19 Mate

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.1501&from=L21haW4-

Comment #4 by Claus DIETRICH:

gb.qt5 is installed but it seems that the IDE is using QT4. 
I don't think that "no problems on Mint before" is a reliable and qualified reference.