Mike, DNN 04.03.07 (I know...) I found the problem is directly related to the recurring weekly events. I have monthly events set and have no problems with them, only the weekly events(W1) (ie M,T,W,TH,F sets string in event record of 0111110). I haven't looked into the event source yet, but something isn't getting set correctly. For now I have to brute force day by day calendar entries for two months , ouch... Problem is you can't edit them once defined so I had to physically delete them from the table.
Event data is simple text string and hyperlink (built from standard event editor)
Recurring settings are Weekly, M,T,W,TH,F and end date
All things the same with a monthly event works fine...
Thanks for responding to my question, best regards !