Change events

I have got a databse and different userform where I can enter data and if necessary change these data via the change event function (VBA). It may be possible that I change a value on f.e. Userform 1 then continue to Userform 2, where again values from a former entry are shown. Some of the values on userform 2 are calculated with values that I changes on userform 1. Let's say that I jsut want to change a value on Useform 1 and when I open Userform 2 these values that are related to the changes in userform 1 should change automaticcaly and not just when I make changes on userform 2... If this is too abstract let me know..

need to see your workbook/code before i can help you out.