Released 3.3.90.

Please try this version and let me know if it works for you.
https://freemonitormanager.com/tmp/fmminst.exe

Hello,
Thanks for the report!
I've made an investigation and confirm that this is a problem of Free Monitor Manager (which is caused by the buggy monitor driver as it seems).
FMM really tries to change RGB while it could not to.
I'll try to fix it as soon as I have time.

Hello,
Unfortunately, this is a monitor related issue. Laptops' displays does not support changing the contrast typically.
I can make the refund if you want to. For this, request the refund in answer to the email with the license key.

Hello,
No, because it's a closed source project. Maybe I'll make it open source some day.

Hello,
Looks nice. But I neither have a paid time to do this, nor a wish.

Hello,
Did you purchase a key? If yes, it should be sent to your email then. Please check your Spam folder.
If you do not see it there, please send me your email you bought the key from, via the private message on this forum.

Hello,
The only way is to buy a personal license:
http://freemonitormanager.com/purchase.html

Hi,
You can post a feature request here:
http://monitormanager.idea.informer.com/

You need to save all the files from that folder for the backup purposes.
There is no such a feature as "Export a specific profile".