Lightroom 5 on my PC acting really odd tonight - ( need help please

[Michael21810176x5ll]

Does anyone know what I might have done to cause this and how to get rid of it? 

I CAN'T SEE THE TINY ERROR MESSAGE I'M GETTING WHEN I TRY TO POST. WHAT ARE YOU TELLING ME?  * Topics help users find your post. Please select one or more topics.

[rom4dl21855553tw46]

I solved this problem by reinstalling the graphic card. To do this if you have an Nvidia graphic card, go to Nvidia Geforce Experience => tab to drivers and update it.

if there is no update then try to remove the graphic card from device manager and then install it again.

[Rob_Cullen]

@Michael21810176x5ll   to get rid of it?  I presume you mean the Red overlay!

Press Keyboard [J] , or [Click] on the Hightlight 'Clipping' triangle on the Histogram-

Visual Clipping warning indicators are Blue for Shadows, and Red for Highlights.