Great sheet - truly humbled by the amount of work in it.
Question though - and for the record I'm using the latest release of OpenOffice 3.1 on Windows Vista with all relevant updates.
I'm building a level 1 fighter. Human.
I put in all the pertinent information on the stats page.
Base Ability Scores, Age, Height, Sex, Race, Favored Class, etc.
I go to the Classes section and fill in my first level, choose how the hit points are done, and pick my favored class bonus.
All of this works fine to this point.
I go to levels and try picking my feats. The human +2 to str shows up fine on the stats page. But when I try to choose something like Weapon Focus - I get Err:502 as the only selection in the Feature Selection drop downs.
I also try picking Power Attack instead. I can't choose Cleave after I do this as well. It may be an issue with OO but I don't know.
One other not - none of the clear sheets buttons work. I always get an error when I click them indicating the function doesn't exist.