when you tried to install 3.1.6 ... did you get any error message?
do you have messages in your php-error log?
I have no error messages.
I'm finding out where the php.error-log.
Can it be that I should change the upload-max_filesize?
If so, I have to see where it is.
hah! Didn't work for me when I had the issue. I'm glad it worked for you!
Whew indeed.
But you really should take backups of your site on a regular basis.