Query Query

This may be better suited to the MySQL lists, but I'd appreciate it if someone could help. I'm probably just missing something stupid here but have been coding non-stop for a week and need another set of eyes. Here's the line of code giving me an issue. I can print all the variables in the script to screen and know that they're ok. It returns successfully, but fails to update the database. I'm sure I'm about to feel pretty stupid, so fire away... just please fire the answer too. $query="UPDATE $table_name SET company_name='$company', first_name='$first_name', last_name='$last_name', address='$address', city='$city', state_province='$state', postal_code='$postal', office_phone='$office', fax_phone='$fax', email='$email' WHERE company_name='$mod_dataset'"; Thanks