I have the same exact problem.
/wp-admin/post.php loads a blank white page and the posts I try to create never appear.
Nothing gets posted to me error_log and this is what i see in my acccess_log
xx.xx.xx.xx – – [06/Mar/2008:14:57:36 -0800] “POST /wp-admin/post.php HTTP/1.1” 200 353 “-” “Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12”
