And with United recording a resounding 4-1 victory at the Yorkshire side in the league last season, Jackson knows his side need to pull their socks up.
"Brighton met us on a bad day, but you cannot take anything away from them as they played very well," admitted Jackson.
"Our home form is worrying. We have only really played well against Nottingham Forest and we need to start making the Galpharm a fortress again.
"At least we are ninth in the table, so the damage could have been worse. But it is very frustrating to have been on such a good unbeaten run and then play like that."