Please help me with all in one seo pack

Hi,

i have installed on my wordpress 2.3 blog this good plugin, but i have this problem:

For the category tag title i have decided to use %category_description% variable for the tag title, but when i open the page the category descripption appear but between the tag <p></p>… EX: <p>My category description</p>….

What can i do for resolve the problem ?