Problem To write topic in WYSIWYG mode .. help

[eurekaa]

Hi ,

I have problem in my VB forum that users/members can not post topic in WYSIWYG mode .

What happened is that the home page of the forum is loaded after the member write and click on the topic's submit button without any action to post / create the topic .

this is only when the user use WYSIWYG writing mode . And it works fine if the user change the writing mode from WYSIWYG to the common html mode .

Any idea on how to fix this ?

thanks in advance