All buttons are the same size for me.

[img]http://i.imgur.com/aMs4xiv.png[/img]
(I meant to remove the pencil)

- Subscribe vs New Reply sizes might be an issue in some browsers since the Subscribe button is actually a form <input type='submit'> while New Reply is an <a href='...'>.
- But I'm not sure how New Reply and New Topic could be different.

Can you screenshot what you see?