Running Windows 7 with WLM 11 which worked OK for 4 years. Suddenly my Contact Groups do not work and the e-mail message only goes to the first named in the designated group. In an attempt to rectify, WLM 12 has been installed but no cure or change. I should add that my groups are small and they should not be attracting the attention of my ISP who may think that large groups count as "spam"

Why is this happening and how can it be fixed?

Changing the title

Old title – WLM 11 & 12

New title – Suddenly my Contact Groups do not work and the e-mail message only goes to the first named in the designated group in WLM11&12