I'm having a serious bug with version 1.9.3 RC2. -- somehow these

css lines end up in posts:

'Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} '

How to fix this? I would rather avoid updating...

It's your browser. You're using FireFox, aren't you?

Yes I'm using Firefox but this is visible in IE8...so it's not the browser.

I was searching for these lines of code and I found a lot of sites using YAF with this error:

http://www.nextstepmagazine.com/nsmforum/yaf_postsm21107.aspx 

http://forum.nexon.net/MapleStory/forums/4263207/ShowThread.aspx 

Any ideas?

The Nexon forum is Community Server. It's related to the Richtext editor you're using on your forum. Sometimes a browser inserts HTML into it automatically. I've noticed it with TinyMCE and Umbraco, too.

It's not a YAF problem, per se. I would suggest using a different Rich Text Editor or upgrading TinyMCE if it's a problem.

FYI, I will probably upgrade YAF to latest TinyMCE for v1.9.4 final.