[Flow] encoding problem

[Walter Meng]

Hi 

I get this error whenever there is a "German Umlaut" in a view:

#1: Warning: htmlspecialchars(): Invalid multibyte sequence in argument in 
/var/www/flow-base-distribution/Data/Temporary/Development/Cache/Code/Flow_Obj
ect_Classes/TYPO3_Fluid_ViewHelpers_Format_HtmlspecialcharsViewHelper.php line 
65 
80 htmlspecialchars("M ller", 2, "UTF-8", TRUE)

On my testserver (Ubuntu 12.10) everything works fine.
But on production server (Ubuntu 10.04,  mysql 5.1.67)  I get these error 
messages.
The table's collation is utf8_general_ci. 

THX for help