Page Up and Down Keys broken

Page Up and Down Keys broken

Hi,

I could not find any reference to this in the forums so pardon me if this is a known issue.

The page up and down keys do  not work properly for me in any Writer document which I am editing.  The page down key always re-positions the page to one page down from the top regardless of where the page was positioned before (e.g., even if I am at the bottom of the page).  Page up repositions the document to the very top, again regardless of its prior state.

I am running Firefox 3.6.12 on Window SP3.  These seem to work correctly in IE 8.

Thanks