> I was able to work around it by removing the umlauts "ÄÖÜ" from the > Validate plugin regex. I'm suspecting this happens when the page is > UTF8-encoded,
Yes, that was the reason. I found the issue was discussed in the comments section of Jörn's page http://bassistance.de/jquery-plugins/jquery-plugin-validation/ Jörn suggests to specify the encoding when loading the script: <script type="text/javascript" src="jquery.validate.js" charset="ISO-8859-1 ></script> Bernd