Cannot send mails

EM client froze, and after restarting I cannot send mails, or reply to mails. I see the windows with the new mails in the taskbar, but cannot open them. MTIA for your help.

Mouse over the new message icon in the taskbar.

Right-click on the thumbnail view and choose Move.

Use your keyboard arrow keys to bring it back to your visible desktop.

Thank you Gary. I could not choose ‘Move’, but one of the other options worked well. Perfect!!