[NTG-context] <mtext> UTF further problems

I'm still having trouble with UTF contents in <mtext> tags in MathML content. It's difficult to send a sample because UTF isn't preserved well either by email or when sending files to the ConTeXt Live server, but I'd really appreciate it if somebody could help. When I replace 'HERE' in the following snippet with any UTF encoded accented character, it comes out wrong: \useXMLfilter[utf]\usemodule[mathml] \starttext\startXMLdata <formula><math><mtext>HERE</mtext></math></formula> \stopXMLdata\stoptext Can anyone help? Thanks a million. Duncan