I too installed Dash to Dock. Which was suggested by @Ponce-De-Leon. I wanted a more Linux look. I was in "Zorin Desktop" I am still new don't know all the terms yet. In the beginning in was Ok, then as time went by. Things started acting up. I started noticing "things" I can't explain it. Kinda like a problem with your vehicle. It starts out one thing then leads to other stuff happening. Recently I switched to Xorg. Then all my problems just seemed to go away.
Replies like this are not helpful for those tryng to help you. Please explain more.
If English is not your first language then write in your first language and use a online translator, or just write in your language and we can use the forum translate tool.
I hope you understand people are trying to help, but with little back from you.
I hate to bring it up @sangamesh. And I don't want to be rude. But one and two words. And half of words. Doesn't do anybody good on here. Try and explain yourself. Nobody can follow what you need help with. We are not Mind Readers.
Do You mean switching to Xorg? To so that, go to the Login Screen. Click there on Your Profile so that the Password Field appears. When it is appeared, You should see in the bottom right Corner a Gear Icon. Click on it and choose the Option ''Zorin Desktop on Xorg'' and then log in. It will stay on Xorg until You change it again.