I hope this is the right group for this posting.

Our app has been ported from VC++ 6.0 (MFC) to DevStudio 2005 as unmanaged
code.  Since then we've been experiencing an odd problem.  When we open a
dialog that displays floating point numbers, the numbers are not displayed in
the proper regional format (e.g., using',' instead of '.').  However, if we
click on one of the edit boxes and then click off, it then displays the
number in the proper format.  Dates and time, however, always appear in the
proper format.  I've tracked one instance of the problem down to a call to
CString.Format() and then to a call to _cfltcvt_l() where the floating point
conversion is done.  Any ideas what could be going wrong?  Could it be some
preprocessor definition that needs to be added or removed?  Some
initialization call that has to be made on the app?  Is it some eccentricity
with MFC unmanaged code?

Thanks for any insights.