Probem with sidebar headers

I am having trouble with the headers in my sidebar.

it is set up using widgets – a Text widget, followed by pages, followed by another text, then links then search. The headers for the first text, pages, links and search are all indented, however the header for the middle text isn’t. The align for the <h4> tag in my CSS is set to left – if I set it to right all headers change so i am assuming it is the correct tag, i just can’t work out why some of them are indented. I cannot find any padding tag that may affect it.

If anyone has any ideas I would appreciate it – it is driving me crazy! Plus, it is only noticeable in IE, not Firefox.

The site is at https://92.48.117.50/~paniconl/ and the @listings’ header is the only one that looks normal.

Thanks for any help!