This problem was resolved by using the fix recommended for the problem "When
I accept a task. . . from today". Thank you, Judy

"Tom in Tampa" wrote:

When I receive an email of a task assigned to me by my project manager,
Outlook shows it in the preview screen but refuses to open the email in a
separate window. When I click either "Accept" or "Decline", there is no
reaction. Any recommendations are welcome.
Thank you