I am able to scroll in every other application on my computer using the touchpad except my Adobe. I used to be able to but a couple of days ago something changed and now I have a black cross displayed as cursor and I can only scroll between pages using the scroll bar on the right side of the files. I tried to look for nvidia (found on other discussions) but I have not found anything on my computer. I have the latest version downloaded.
Hope you are doing well and sorry for the trouble. As described you are unable to scroll the PDF using the touchpad
Is this a behavior with a particular PDF file or with all the PDFs? Please try with a different PDF file and check.
Also make sure you have the recent version 21.07.20099 installed. Go to Help > Check for updates and reboot the computer once.
Please try to reset the Acrobat preferences as described here https://community.adobe.com/t5/acrobat-discussions/how-to-reset-acrobat-preference-settings-to-defau... and see if that helps.
You may also try to create a new test user profile with full admin rights in Windows or enable the root account in MAC and try using the application there