@@@marker@@@ @@@marker@@@ error

Hello:i upgraded to WP2.6.1 and reinstalled but still have same error on templates – it appears only on homepage.. when I have wp-debug installed it lists errors at bottom of homepage template but the overriding error is at the top of each theme (except 1 or 2)…and it is as noted in the title of this post:

@@@marker@@@ @@@marker@@@

Can someone assist as to how to rid this error? I installed every DB Fix I could find but still no fix for the theme. All else appears ok, but some text in more complicated 2.6.1 themes is appled as a horizontal simple html listing with graphics underneath instead of allocated correctly…my current page is at https://teach-eng.com/rosacea…thanks for any help.
CLAIRE