Using Proseries 2023 and 2024 I have been having the same issue: when I'm working on forms 1120S (if I remember I have same problems with 1065, 1120) the page 3-5, scrolling down to the Schedule L, suddenly the program stop displaying the form and everything turns white. That means I can not work on Schedule L, M1, M2. I can not see anything.

I have to print a PDF file to can read what information I have, Impossible to clean mistakes or continue working.

What should I do? I tried to save the file, to changes pages, close the file, close the program, restart the computer and still have the problem. Also run updates but nothing happen. Sometimes, if I'm lucky, the program shows me 2 or 3 lines more.

Please help. Thank you