Validation: How To Stay On The Invalid Record

I have a problem with validation attached to a field or an entire record (displayed via a form) in that, if the user exits that field/record by moving to the next Access record, when the message comes up, it is this next record that is displayed, not the invalid one. This is confusing.
My users usually use a filter when updating (sorry about the alliteration!) & this mostly displays just the one record out of thousands. When they remove or change the filter, the message is, as above, displayed over the wrong record.
Ideally, I prefer the entire, quite complex record to be validated at one 'go' as many of the fields are interlinked.
I have achieved this, sort of, with a button called Validate which the users are supposed to click when they have completed adding or updating a record. Most of the validation code is attached to this & it does keep them on the right record. However I can't make them click it.
I have tried controlling the record displayed by making the record pointer go back one or forward one when an error is found but this causes problems with the first/last record in the table or filtered results.
Each record has an unique number. I have tried storing this number & coding a filter to re-display it when an error is found but this is confusing when the users were not filtering to only one record. Also it only works once. If further errors are found, the application gives up.