Describe the bug
Window becomes offset from screen centre after installing 'mintupdate', resets to centre after system restart
To Reproduce
Only happens after installing new version of 'mintupdate'
Happens whether Windows -> Behaviour -> 'Location of newly opened windows' is set to Centre or Automatic
Expected behavior
Update Manager window should remain screen centre after new version of 'mintupdate' is installed. Window offset jump is possibly an older regression which began a few 'mintupdate' revisions ago?
Frequency
Does the issue happen:
[x] Always
[ ] Randomly
Edition (Desktop environment):
In which edition is this happening?
[x] Cinnamon Edition
[ ] MATE Edition (untested)
[ ] Xfce Edition (untested)
Live or post-install:
Indicate if this is happening after the installation, or during the live session:
Describe the bug Window becomes offset from screen centre after installing 'mintupdate', resets to centre after system restart
To Reproduce
Expected behavior Update Manager window should remain screen centre after new version of 'mintupdate' is installed. Window offset jump is possibly an older regression which began a few 'mintupdate' revisions ago?
Frequency Does the issue happen:
Edition (Desktop environment): In which edition is this happening?
Live or post-install: Indicate if this is happening after the installation, or during the live session:
Screenshots![mintupdate offset window position](https://user-images.githubusercontent.com/13056699/50046313-8d2c5580-0099-11e9-9986-8b2598a3496c.jpg)
Locale: LANG=en_GB.UTF-8
Drivers: NVIDIA 390.77