Forum does not come back from posting

[HPW]

Yesterday and today I noticed that posting come not back.

In the status bar I see that it opens:

posting.php

but it does not finish.
When I jump back into the forum the post is there!

Edit:
Or is it only the TSimpeGraph thread?

Seems so, bacause this here does it without problems.

Strange!

[Kambiz]

I repaired the database tables. I hope this solve the problem otherwise I have no idea how to fix it.