I’m running version 2.82 and I had this issue. Found the vars.php and wp-twitter plugin had the bogus code in them and I copied over them from clean backup.
I’ve actually had a problem with my RSS since I started my blog alittle over a month ago. It seems to go down daily for a few hours. This latest outage started last night about 10 pm pst.
Thanks… This looks to be something that will take quite a bit of time and concentration which I don’t have at this time. In the meantime is there no other fix for the RSS on the version I am using?