Outlook Calendar sync Issue

[Oldlaxdude]

I frequently get multiple appointments that I can import into Outlook via ical or through excel.

Problem I have is appointments imported into Outlook will not sync with Act.

This is also the case if I copy and paste items (same subject, different date/time)

Is there a specific field that Act uses to identify outlook calendar items that I can modify ( Note: programming knowledge = 0 )

Is there known bug ?

Anything other than entering 20 similar items 1 at a time?

Thanks in advance

Tom

Act 2011 pro

Outlook 2007

W 7