After a Hard drive problem I have had to re install Lightroom CC and the version installed 2015.2.1 is different to the one I previously had and never had a problem with.
Now using Lightroom I am often getting the program locking up and 'Not responding'. I did notice on this version that the use Graphics Processor in preferences is working
where as before it wouldn't work. The processor is a Radeon HD 7570. I have tried to un tick the 'Use Graphics Processor' and all I get is 'Preferences not responding'
Anybody any ideas Please
Would suggest you to make sure that the graphics card drivers should be upto date.