Message, "it seems there's a problem..."How can I find problem when I'm sending email to a few friends ?

I want to forward a message to folks in my address book and I get that "it seems there's a small problem in your address line check..." I check and all the commas are ok. Why can't this message be a little more specific? How can you find the answer? This is a real problem.
Message, "it seems there's a problem..."How can I find problem when I'm sending email to a few friends ?
i have had the same problem for 3 days now, you can type in the name, but you can't check the box and forward successfully, this is a pain in the blank when you are used to doing something that works well and you have to go back and do old school...


help !!!!!!!!!!