Taken from the answer to one of my questions on an Opera tech newsgroup: <tip type="Cross Browser CSS Authoring"> The Opera 5 browser does not recognise Class names with underscores. Therefore, class="Left_Table_BG" won't be read. Changing the class name to Left-Table-BG should work as expected. </tip> Hope thats of some use to someone somewhere... Cheers, Olly - www.gnarly.f2s.com -