I recently purchased one of the new iMacs. This updated my version of iWeb 08, operating in system 10.4.11, to iWeb 09 in 10.5.6. When I began to update my website I encountered numerous error notifications stating, The font ArialMS" was substituted for the missing font "ArialMT". The warning also included substitution for the bold version of these fonts. To my knowledge, I've never used either of these type faces on my site. I found a discussion group post relating to this same problem from May 2006. The solution was to open the index.html.gz file, do a find/replace for the missing fonts in text edit. Save, then delete the original index.html.gz. I tried this but neither font was detected in the file, so this didn't work for me. These fonts are not in my system. I've tried to find them online with no success. Anyone have any ideas? This is an art site, and is huge. The thought of recreating each of the many effected pages is overwhelming. Any help would be much appreciated. Thanks