Thanks guys... I might be going doolally but I am sure it used to work. I am using a microsoft wireless 2000 mouse and I have checked I am using latest driver. This is the only program the scroll doesnt work in...... perhaps something happened in the move to Win7... I had XP SP3 previously. I no longer have access to it so I cannot do an impirical check. I guess I will have to get used to it!!!