My Message+ desktop apps on two computers have popped up like I have never used them before and says Let's Get Started. I then asks me to click and send a verification text to my cell phone and enter the Security Code. I gett the text,but the Security Code keeps failing (Invalid Pin...) when I enter it so I am not able to log on. Not sure what to do and can not seem to fingf the Desktop App to re-download to Windows. Please advise. Thank you