Everything was working fine, then I upgraded Logos from the Android store for my phone. Now I can't log in and I get the error message invalid username or password.
Now I know that I am not the sharpest knife in the drawer, but I DO know my email address and password thaat I use for Logos... and NO, I DON'T want to change it... I want Logos back on my Samsung Galaxy S II.... Oh how I wish I didn't upgrade... what a pain... 
Thanks for your anticipated help.