I just upgraded today to WordPress v 2.8.4. I am using WordPress as part of my Yahoo Merchant Solutions account and I had to perform the upgrade install manually. Now none of my posts show up in Internet Explorer. They show up fine in FireFox if I set my Permalinks to the default with the post #, but if I change my Permalinks to any other setting my posts don't show up in FireFox either. I have searched in both my File Manager in Yahoo and through my FTP software (FileZilla) and I cannot find a .htaccess file anywhere. I created one in Notepad and named it 1.htaccess, FTP'd it to my root WordPress directory and then tried to rename it to .htaccess but I get an error message in my Yahoo File Manager that says "Rename failed for 1.htaccess.txt
--- Invalid filename".
I see numerous posts about similar issues but most of these are unresolved. Could someone please help?