Some Calendar Items Not Synching

Some Calendar Items Not Synching

I just installed the Calendar Sync plug in.  I created some all day events on my Outlook Calendar and then pressed Sync.  Only 2 of the all day events sync-ed to my zoho calendar - plus I had an appoint on my Outlook calendar which did not sync as well.

I am using Outlook 2007 and have Windows 7.

Thanks for a prompt reply.