Obscure Newbie question

:confused:

I've been writing little frontend programs to expidite working on an old mainframe system via IBM's PCOMM system. In general, I simply stick to the template PCOMM's help provides for how to control it, i.e.:

sub Do_Something()
Dim SessionOne As Object
Set SessionOne = CreateObject("PCOMM.autECLPS")
SessionOne.SetConnectionByName ("A")
StuffToGet= SessionOne.GetText(1, 1, 4)
Set SessionOne = Nothing
end sub

(The above picks the first PCOMM Session (session A), grabs 4 characters frm x=1,y=1, and calls them StuffToGet)

I notice, however, after I run the program (or, rather, a version of it that actually DOES stuff, unlike the above) 20 or so times, I start to see a substantial slowdown on my machine.

I use:
Dim Form As Form
For Each Form In Forms
Unload Form
Set Form = Nothing
Next Form
at the end of the code to unload the form, as well as setting each created connection = Nothing (as in the first code sample, above), yet I still see this performance problem.

Ok, I admit.. I'm still new to this kind of thing, but am I missing something basic here? Or is there something specific I should be looking for that would cause such probs. (E.g., do I need to actually kill each temporary variable I use all through the program, etc.)

Thanks!