Your view settings may be bugged. I'd recommend trying the /cleanviews command switch. Basically follow the same steps that SpiderTech described, but use /cleanviews instead of /checkclient. This command switch will clear all custom views and reset your view back to default. Once you're back in Outlook after running the switch, set your view to however you want it to look, and see if Outlook keeps it.

Hope this helps.

-SW