If (IsNull(Me.[oldoffset1]) Or (Me.[oldoffset2]) Or (Me.[oldoffset3]) Or (Me.[oldoffset4]) Or (Me.[oldoffset5]) Or (Me.[oldoffset6]) Or (Me.[oldoffset7])) Then
...although, if you're actually trying to check for Nulls in any of those, you need to parse that separately.
If (IsNull(Me.[oldoffset1]) Or IsNull(Me.[oldoffset2]) Or IsNull(Me.[oldoffset3]) Or ...