I upgraded My Calendar plugin from 1.9.8 to 1.10.3. After activating, the month of January displayed but I could not move back to December 2011 to view past events. After removing versin 1.10.3 and reinstalling version 1.9.8, I could again manuever to past month's displays. Has anyone else encountered this problem? Trying to figure out if this is something associated with just my installation or is a bug of some kind in version 1.10.3.