Color Problems with IE4

I am having some difficulties with the coloring on my site. Currently there
are two problems to which i haven't been able to find a solution, so i
figured I'd turn to you guys for the answer. The page in question can be
found at http://members.home.com/bmarkham/elysian/test.html . 

Problem #1)
The beige block at the left is split at each of the 6 nav buttons. The only
problem is, no matter what i do, there are fine little divisions noticeable
when the page is viewed. I was wondering if there is anything that can be
done about them.

Problem #2)
This problem has to do with the white background and the white background
of my images. The white background of the images seems to come with a pink
tint when viewed against the white background of the browser.

Both problems were noticeable in both IE4 and NN4.6, but were much more
noticeable in IE4. The images were created with PS5 and compressed as JPEGs.

Thanks.

-Brian

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