Elizabeth Tasker on Nostr: My windows computer (bought from a friend so it's a new-to-me-machine) isn't ...

My windows computer (bought from a friend so it's a new-to-me-machine) isn't recognising two of the three monitors I've tried.

Both the unrecognised monitors work fine with my Mac Mini (so both cables and the monitors themselves are fine). The monitor that is recognised by the Windows PC is the newest monitor (by quite a lot: the other two are 10+ years old).

Any ideas? Is there something about old monitors that Windows hates?