I converted some HTML files to XHTML via HTML Tidy (via HTML-Kit). I had a few warnings which were fixed and a few I am not interested in (I don't need <table> summaries for an IE6-only business site). The formatting which was done is lovely, but I lost a few things along the way--HTML Tidy took out my <center> tag and I lost a loss of my CSS page text formatting. If I remove these lines: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> then the formatting comes back. Can someone tell me what I'm doing wrong? The file without those two lines (and with the <center> I put back) is here: http://hclic.gwsystems.co.il/pages/DesignTest/AddCreditors.htm and the HTML Tidied page is here: http://hclic.gwsystems.co.il/pages/DesignTest/AddCreditorsX.htm Thanks, Hershel