Philippe:
If the user is still on OS 9, chances are that they use IE - not much choice in browsers there (Opera 6 or older Mozilla, both run poorly).
On top of my head, based on your description:
position relative on that navigation ul (IE 5/OS 9 is more sensitive to that).
un-cleared floats
float lacking a width declaration.
Send a url for more accurate diagnosis.
I agree, it is sometimes difficult to check older browsers - I'm now lacking a convenient way to check IE 5 Win, since a neighbour had the <sarcasm>stupid idea of buying a new computer recently</sarcasm>.
http://shadyland.theward.net/downloads/
grab the top file. Unzip to whatever directory, and then run. It's a pre-packaged version of Windows IE5 and 5.5 for WinXP running alongside IE6. All it is is the results of what you get when following the same-machine IE guide from insert-title.com. HTH
-- Ryan Christie | e: [EMAIL PROTECTED] Harrisonburg, VA | w: http://shadyland.theward.net -------------------() ()------------------------------
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