Messaging keeps appearing

[nitrous9200]

I don't know if I've never noticed this or changed some setting someplace, but it seems whenever the phone checks for email (every 15 minutes), the Messaging application opens up, but only the title bar changes (to Messaging) and the soft keys change as well. I can still see the application that I was using before since only the title bars had changed. I'm using Adrynalyne's 6.5 ROM (version 3.7 if I remember correctly). Any thoughts? I'll try and get a screenshot if I see it happen again.