Upgraded from 3.0.4 to 3.1.4 few problems but install all went well

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3.23 still has a lot of bugs and has changed the database design. SO if you want to upgrade test on a test forum and use a backup of the current database with a new name.

[nEw_boY]

For that logout problem, I had it once I changed my hosting to another place < Shared to Shared.
Just clear the cookies, catch and flush DNS catch.
It will do.

Ps. Go to cPanel > MySQL > Check DB if it's broken repair it from there or go to acp and check Support > DB.

@LD: Thank you for tip, I was going to upgrade from 3.1.4 but I guess its wise decision to wait for one or two more updates from IPB guys

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Amen to that..