Hi Mike

>Why have the Next and Previous page buttons in the first place? The whole idea of a page frame is to click the tab of the page you want. Simple, intuitive. IMO separate buttons add nothing and in fact might cause confusion. If I encountered that interface my reaction would probably be "Next what? Previous what?"

Keyboard fanatic that I am :), plus the idea was to have captions that update themselves, so it is not Next and Previous, but the name of the next or previous page as seen on the tabs. The user can always navigate to the tabs randomly by clicking on the tabs but during sequential data-entry I thought that they might as well keep their hands on the keyboard.