ubuntu os mouse work under double click

friends today i m going to show u the most silly problem of ubuntu os that make u mad 




so friends when u work on ubuntu os  after some days the mouse automatically work double click on single click mode so here is the fix 




first go to setting and log out ur account after that u see the log in screen  and the vertual keyboard appear on ur log in screen then u see that the all the option are in white but onlly one option is in red so click on the icon and turn icon as it all others like normal white icon  then log in and enjoy irritation of mouse  

                                                         thank u k..................................