I think I found a (strange) solution to this. I was going down the road of wondering whether my .Find call did actually give me a live object, as it seemed to. So I did this:

 ot.Subject = "Please Delete Me!"
 ot.Save

I checked in Outlook and the task's subject had been updated. After that, ot.Delete worked fine. So my workaround code in the DeleteTask method of my Outlook wrapper class is:

  *NOTE: Next 2 lines below work around OLE error was getting on .Delete call.
  oTask.Subject = oTask.Subject
  oTask.Save
  oTask.Delete

Strange, but seems to work.

Kelly