Yesterday I upgraded my site to wpmu-1.2.2. The download page still shows 1.2.1 but the file linked to is 1.2.2. ¿?¿?¿?
Now when activating certain plug-ins that somehow mangle with post contents (like sociable, or jLanguage), they get on the <body> AND into the <head> of the HTML. Only on individual pages and posts, the main page works OK.
Sample page, take a look at the HTML source code:
http://www.bisente.com/blog/2007/06/17/spanish-mas-idiomas-para-el-corrector-ortografico-de-wordpress-spanishenglish-more-languages-for-wordpress-spell-checkerenglish/
Disabling these plugins the problem goes away. But both plugins worked right with 1.2.1.
Any idea what can be going on?