Variable Prob

Argh! I hate it when one little annoying thing starts up right when I think I have the coding finished! I have the following code: if($last_name) { printf("%s %s's<br><b>%s</b><br>%s\n</td>",$first_name,$last_name,$year,$color); } else { printf("%s's<br><b>%s</b><br>%s\n</td>",$first_name,$year,$color); } So if the person has a last name in the database, print "John Doe's 1990 Red" and if they don't, print "John's 1990 Red". This is in a while() statement, and it works except that on one particular query, the last record that comes up has a NULL value for the last name, but rather than printing $first_name's it prints $first_name $last_name using the last name of the previous record! Am I missing something there? Do I need to clear out a variable somewhere? It seems like since $last_name isn't even called in the else statement, it shouldn't even be showing up! Jason Soza