Hello,
Recently because wordpress decide to only support php 5.3 above for their latest release, i just update the php to 5.3 using yum.
The update went well and it seems it also update the mysql (maybe for compatibility).
However, now there's something strange in the database. Some table didn't appear although it is there. (accessed from wordpress is ok)
I also try to create new user for a database and here is the message:

My plesk version is 8.6.

Does anybody know what's wrong?

Thank you..