cal settings problem

[Maxxodd]

I have mobileme and when I go into cal settings, there are two of everything. I presume this is the calendar items on my iphone and mobileme. My phone syncs with mobileme, so they are the same. Unfortunately, I can only select both of each calendar items or neither. Thus I end up with duplicate calendar alerts for every event on my lockscreen. Is this a known bug? Is there a fix? Or am I just doing something completely wrong (very possible!).

[Maxxodd]

Is no one else having problems with this? Its starting to drive me crazy.