Combo box intead of parameter query problem

[OlgaPope]

I have a form with a single combo box and a couple of control buttons, that is supposed to act like a parameter query. I have an Edit button going to a macro that opens and lets you edit a table via another form. When I test the whole thing it works the first time: I select a number in the combo box, click edit, it takes me to another form and lets me edit the records. When I do it the second time, it takes the number from the combo box that I used the first time and places it instead of a number that I choose from the combo box the second time and also changes that number in the table where all the combo box comes from.
Please help somebody