Message Rules appear to not work

I have been receiving daily emails in my Junk folder from a Canadian **** selling viagra among other objectionable products. The address of the sender is always different, but the subject line is the same. The subject line contains the word "Drugstore" which I entered in the Message Rules window and indicated its deletion. This does not work! One interesting thing, however, is that the message line always begins and ends with a graphic (money bag with a dollar sign). All the other words on the subject line are enclosed within parentheses and strung together separated by commas, not spaces. I've Repaired Windows Live programs, as suggested in another reply, but no change. What to do?