We are an OLD INTUIT user.

This is scary! About 15 years ago we were running out of floor space for file cabinets so, in an attempt to go "paperless" (at least partially)  we began using DMS to save T/Rs, and back-up material (about 1,000 docs/year).

NOW I can see the docs but can no longer open anything prior to 2018!!! (about the time I switched to WINDOWS_10)

Could ADOBE be the problem? I used various current versions of ADOBE up to 2019, then I switched from ADOBE ACROBAT 11 to ADOBE ACROBAT DC. Is DMS using a proprietary version of PDF?

Any suggestions would be greatly appreciated.