My wife is Deaf and Blind, and uses a Braille display using Jaws 4.01. She has difficulty with the extra graphics and controls on MSN Messenger 5.0 and 6.0 (both of which we have tried).
Because we can't turn off the extra graphics or hide the extra controls to make the newer versions easier to navigate with the keyboard (Carleeta can't use a mouse because she can't see the pointer) we want to revert to an older version until something which can be configured appropriately is available.
Email, Internet Explorer and MSN Messenger (in that order) are Carleeta's main contact with the outside world, because she can't use the TV, radio, phone, or newspapers, and she can only speak using sign language with her hands.