Mouse Click on some area is not workings after Teamviewer is installed

The mouse click function is not workings on some areas (e.g. Grid Area and top menu) but works on others (e.g. menu tree, right-click menu). 

Reason: 

The TeamViewer's QuickConnect button is conflicted with HRPro.

Solution:

In TeamViewer, top menu, Extras->Options->Advanced, Show advanced options. Quick Connect button, click Configure... button. Uncheck Show QuickConnect button.

Alternatively, right click the teamviewer icon at the taskbar and select Toggle QuickConnection button.