Wonky "Reminders" App

I don't really mind the iOS 5 update. Honestly. But there are some things, Some Things, that just...bother me.

Every once in a while, when I open my Reminders application, it adds lists that I have not put on manually. I'd put a picture on but I delete them consistently. Usually the groups look are listed in all capital letters with a few dashes with numbers; in all honesty, they look like serial numbers!

e.g. 44JDFGH-58FFHSAU-12AS2U9DJ-19DDHD934

If anybody has experienced this, or knows a possible solution (other than completely wiping and starting a new backup), please let me know.

Thanks very much,

Dave