Two Instances of a Form

Here's my code:

Declarations:

Public frmQTemps() As QTemps

Code in my Main Form:

        ReDim frmQTemps(SSTab1.Tabs)
        Set frmQTemps(SSTab1.Tab) = New QTemps
        Load frmQTemps(SSTab1.Tab)
        frmQTemps(SSTab1.Tab).Tag = CStr(SSTab1.Tab)
        frmQTemps(SSTab1.Tab).Caption = "Temperature for Q" & qsntxt(SSTab1.Tab).Text
        frmQTemps(SSTab1.Tab).Show

I have this form QTemps that I will be loading several instances of.  Now, I want to be able to tie each instance to a specific tab on my main form.  Now, this method let's me do that to a certain extent.  Once I have two tabs and load two instances of this form and start them both processing my task, I get stopped.  My winsock control array for each tab complains with:
Run-Time Error 91.  Object variable or With block variable not set.

This is at a point where i'm referencing an object on the QTemps forms that I have loaded.  But it only seems to happen when I get them both processing at the same time.  Any ideas, thoughts?

Thanks,
Robert