Yikes.  I try and regulary host H2H, and have for weeks with no difficulty.  Tonite, I log on, and as soon as my arena comes up there is a grey opo-up box saying "Invalid model number" and I have to click ok. 
Here's the problem:  when I go to arena settings, the bottom half of the choice boxes are gone!  I cant make any arena changes...
kinda hard to host that way.  
I came here first, but there were no real answers already.
I then deleted all the HTC/AH software from my PC, and reinstalled it.  The first time I went in it was ok while I made some arena setting changes.  After exiting and comming back to H2H, it's doing it again!  "Invalid model number"
I can really use some help here!  Thank you very much!
