Unable to make posts in certain forums when NS enabled in FF

[Tomorrow]

For example Crucial Community Forum @ http://forum.crucial.com/
Not sure if other Lithium based forums are affected too but this is not the first time this problem has bugged me.

When trying to post a message i get this error:

Your post has been changed because invalid HTML was found in the message body. The invalid HTML has been removed. Please review the message and submit the message when you are satisfied.

Doesent matter what i post. It may be just 4 letters and no formatting and the error message is same. However when i disable NS and restart FF i am able to make posts without a problem. You can get my NS Config file from: http://dl.dropbox.com/u/62357244/NoScript.txt
If you notice some setting that could cause this let me know so i can troubleshoot. Thanks in advance.

[Thrawn]

Is there anything in the Error Console (Ctrl+Shift+J, or Firefox Tools > Web Developer > Error Console)?

[Tomorrow]

Nothing of intrest. Few errors from greasemonkey and an error about some value in the forum software running script being deprecated.
Im unable to post here as it seems the antispam filter thinks it could be spam.

[therube]

Does the issue persist if you disable NoScript?

Your post has been changed because invalid HTML...

Talk of:

rich text vs. html editor
preview prior to post
removing strings of code such as "&nbsp"
not including smiles ...

[Tomorrow]

No the issue dissapears when i disable NS. Oddly the issue does not dissapear when i allow the page. Atleast i does not show it has blocked any scripts.
For some reason only completely turning off NS helps.

Thanks for the google link. I will look into it and see if i can find some hints.
As for the post: Used rich text editor not html. Preview did not work. No code or smilies in post.

EDIT: issue fixed!
Apprently 2 greasemonkey scripts were inserting their own HTML code into the posts and thus the forum did not allow those posts. One was about changing global font and another was a currency converter script. I added crucial community into their whitelist and everything works again. I will notify script authors to look into this issue. I have no idea tho why disabling NS would fix problems with those scripts. Weird. Anyway. Issue solved (updated thread title).