... I use to be able to send an email to a member of this group. I can still do that but I can not get his response.
I can't help you with the Windows side of this, but please tell me how you send an email from this forum.
I use the small "envelope" icon under the user information (left side of the message block). That is NOT done with Windows, so it should be received by the member (as you state, it does). The "From" email address in the message should be the YOUR email as you provided it in your NNPG profile.
Overseer: If this is not correct please correct me here.
David-Audrey, check your NNPG profile to be sure the correct reply address is displayed.