She was pretty good in Rock Star. Otherwise I think she stinks.
Her best role was in the South Park "Rainforest" episode.
That was her character in Friends, The Good Girl, Office Space, Rock Star, Picture Perfect, Along Came Polly, She's The One, and apparently Bruce Almighty as well - although the last one I absolutely refuse to watch no matter how much my wife wants to see it.
And I suspect there are reasons why she only plays that one character.