About me in profile?

Hello, are there any extension that create a about me section for the profile page... so it creates a bigger box where users can type around 300-500 words in about me section? I have tried nya fields however it doesnt seem to be working for me as it doesnt show the bio: write something about yourself here text next to the field plus you can only write so much in the box.. (also i have to put something in the address box to get it to work for me other wise it gives me a error)

any help?

thank!