mfc, Active X Control locks window

Hello,

I have the following problem: I have a Window with an ActiveX Control
(Logitec Camera Interface).
In addition I have a worker thread which accesses this control to aquire
single images from it and write it to a file (well - kind of a movie but it
must be in sync with other inputs so I use this way).

The problem I have now is that accessing the activeX controll seems to look
user-interaction with all other controls (buttons) on this window. So the
user even can't close the App.
At the same time, updating controls from the SW works fine and fast .

Any Idea how I can make shure that my buttons continue to work ??


Carsten

Sounds like the problem described in MSDN article 828643. I already
asked about this issue (what specifically does cause this blocking
behaviour), but nobody seems to know (or could find the energy to answer
:-(
What kind of apartments do your processes run in?

Regards,
Stuart