My Q, your A: Kid not liking his name

I was all ready to do something baby-related this morning, but then my older son sprang something on my that's really bugging me. He told me that he wished he had a different name, because he hates his.

Those of you that read my ex-husband's blog know what his name is (I never wanted to post real names, but it was already out there), but for those of you that don't it starts with an R and is a very common, solid name.

Have any of you gone through this? Is it just a feature of the age (almost 7)? Or is this more serious? Is it something that can be solved by helping him choose one of the hundreds of possible nicknames for his name to go by? Or did we actually pick the wrong name?

He told me "We should talk about this later on so we have enough time."