Actobat 9 Standard /Excel 07 nightmare

My small office uses Excel 2007 on all PC's, but we have Acrobat 8 Pro on some, and Acrobat 9 Standard on others. We create large pdf documents every day, typicall 50 to 100 pages each. We are having trouble with 9 Standard: pdf document created using 8 Pro look substantially different than those made with 9 Standard. 8 Pro documents are fine, but we have trouble with graph and header/footer sizing using 9 Standard. With 9 Standard, graphs are too big, overwriting other content. Also, headers/footers change both size and location on each page. Importantly, the pdf output changes when creating docs from the exact same Excel 07 files. Pro 8 works but 9 standard is nearly useless. In an attempt to fix, we have checked for and downloaded updates, posted on Adobe's forums, tried the workarount fix regarding dpi settings and also checked to make sure that printer and pdf settings are idential on all PCs. Nothing has worked. Possibly worth noting, each page of the pdfs created using Pro 8 display the same size setting (ie: all pages @ 91%). Pages created using Standard 9 display a different page size for each page and are mostly smaller (ie:47%, 64% etc). Sorry for the long post (first one), but this is very frustrating, considering the money spent on these products.

thanks in advance for any/all replies.

jim

ps - not sure if it's important, but these pc's are all relatively new and exceed Acrobat system requirements.