No, they've got a decent list of hits. The song that broke them is called "The Red", and can be found on their 2002 release "Wonder What's Next." They also had a pretty big hit on that same album with "Send The Pain Below," and also (to a lesser extent) "Closure."
On their latest release, "This Type of Thinking (Could Do Us In)", which includes "Vitamin R", they had another hit single called "The Clincher," and then "Panic Prone" was a smaller hit. So, they've established themselves pretty well. I mean, they're not huge by any means, but they're one of the bigger alt-rock banRAB around. Doesn't hurt that they're from the suburbs of Chicago either