Ok consider me told off.
This order form is a two part form which instead of a combo box for the supplier code i was using a kind of search form(FrmPOSupplierSelect) to select a supplier based on the first few characters and then copy this across to the order form and then they can go straight to entering products without using the mouse atall.
The idea i was using was not to use the mouse atall, only the keyboard.
P.S. I am only just beginning with access and am using the sales app from work as a guide which uses only the keyboard.Once i have the general idea working then i can take all the advise i have been given here and in other posts to make it better but im stubborn and like to make things work the way i want first no matter how hard it is.
Thanks
Gareth