I have outlook 2003 installed on a computer that is recieving mail from a local mail server on a company network. Every once in a while outlook seems to go really slow. It is fully updated. This computer use to do this when it had an older version of outlook. after putting outlook 2003 on it it seemed to work fine until now. It also seems that when you us the keyboard to move through outlook it lags less than if you use the mouse.