The fix is to delete/backup all those extra useless texts and contacts? I think that's a pretty reasonable option. I would absolutely hate to deal with all that clutter anyway. I mean, are people thinking they need to look up when their ex said "lol" in 2009, or the number of a friend's friend they met at a party three winters ago?
Aterion: Maybe the service can be disabled in the services section of dotfred's task manager?
http://www.dotfred.net/TaskMgr.htm
I see a thread on disabling the default HTC messenger in favor of pocket outlook. Which is weird because it looks like it IS using pocket outlook on my phone, and that's where everything is apparently being saved. Anyway, maybe it'll be useful?
http://forum.xda-developers.com/showthread.php?t=556614