if the screen is a table then one option is to limit the data using a paging strategy.
if the screen is a form which collects an extensive amount of data before processing, then a wizard driven workflow would work better. each page would contain a subset of similar data.
personal info, professional info, hobbies, credit card, confirmation, etc.
you would then guide the user through the setup.
whether or not you use ajax is independent of reducing the amount of data on the screen.
Jason Meckley
Programmer
Specialty Bakers, Inc.
faq855-7190