Monitor brightness on version 5.20

Hello folks,

I have the following problem with the new version of ccleaner:

The brightness of my notebook has normally 50%. but when I start the program, the brightness switch automatically of 100%.

When I close the program, the brightness returns to 50%.

Specs: Fujitsu Lifebook 751, Win7 64bit, Graphic Intel HD 3000, Driver version 8.15.10.2372 from 7/29/2016

Regards (and excuse me my lousy english...)

-Ralf-