PCo 2.1 and Proficy iFix using OPC DA

I'm finding some interesting behavior when trying to access Proficy iFIX  HMI / SCADA with PCo 2.1 using OPC DA.
PCo Version 2.1.0.55
iFIX version 5.1
SCADA OS: Windows XP Pro, SP3
MII Version 12.1.5 Build(99)
What happens is that when I do a tag list in a tag query, instead of getting the tags, I get the propertes of the tags in the tag list, so what I think PCo's OPC client is doing is resolving to the lowest level of the tag list, which of course would be a tags individual properties.   iFIX UDS does not exhibit this behavior.
I've tried a variey of settings in PCo, including "Force Flat Namespace"  to no avail.   Is there an option to set how far down the tag list drills?
Here is my setup, I know most of these settings have nothing to do with my problem but here they are for completness:
Source System Type:  OPC DA
OPC Server Name:  OPC Data Access 2.0 for ifix
Specification:  DA 2.05A
Acquistion Mode:  Synchronous
Read Source: PCoCache
Force Flat Namespace: False
Synchronous Read Source: Device
Acceptable Data Quality: Good
Activate Items: Both
Agent:
No Subcription Items
Communication: MII
Tag Query Cache Mode:  Cache:

What happens if you try to add some Tags using the Subscription tab on the Agent Instance? Do you get the same behavior in the OPC Browser in PCo?
- Steve

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