When inviting friends to a Facebook event, I can't see all of my friends lists

Firstly, thank you in advance for your help.

When inviting friends to a Facebook event, I used to be able to see all my friends list on the drop-down menu. Now it only lets me choose from the first 7 lists. The latter 83 do not even show up. (I have 90 lists in total)

I have tried re-naming the lists, but the same 5 lists always show up. This problem started in April '11, and has been happening for 3 months. As a performing musician, it is imperative that I am able to select from these lists. I have included a screenshot of what I am experiencing. I have tried using various browsers for Mac and PC, and expanding the resolution of my screen. Nothing works.

If anybody has any insight, I would greatly appreciate your help! Below is a screenshot of my issue...

Thank you so much!
Jeff Jacobs

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