Fixing dead mouse click in VBox linux guests

ps axjf | grep VBox


     1   832   830   830 ?           -1 Sl       0   0:13 /usr/sbin/VBoxService
    1  1691  1690  1690 ?           -1 S     1000   0:00 /usr/bin/VBoxClient --clipboard
 1691  1693  1690  1690 ?           -1 Sl    1000   0:00  \_ /usr/bin/VBoxClient --clipboard
    1  1701  1700  1700 ?           -1 S     1000   0:00 /usr/bin/VBoxClient --display
 1701  1703  1700  1700 ?           -1 S     1000   0:00  \_ /usr/bin/VBoxClient --display
    1  1707  1706  1706 ?           -1 S     1000   0:00 /usr/bin/VBoxClient --seamless
 1707  1708  1706  1706 ?           -1 Sl    1000   0:00  \_ /usr/bin/VBoxClient --seamless
    1  1716  1715  1715 ?           -1 S     1000   0:00 /usr/bin/VBoxClient --draganddrop
 1716  1717  1715  1715 ?           -1 Sl    1000   1:45  \_ /usr/bin/VBoxClient --draganddrop

Kill the --draganddrop one, which here was pid 1717.


VBox virtualbox version 5.0.26 r108824 ubuntu 4.4.0-38-generic #57-Ubuntu linux guest (windows host, may not be relevant)
Mouse movement was working, left and right click not working, scroll wheel not working.

Keyboard was fine, alt-tab to switch to a terminal if open.
Ctrl Alt T to open terminal, Alt + Space to open context menu, down arrows to select maximise if full screen is needed.