Validation plugin bug in IE6 ??

Validation plugin bug in IE6 ??

If you look at the example page of the validation plugin:
http://jquery.bassistance.de/validate/demo/
The second form fields can be accessed with IE6, when you click on them you set the focus but you can write.
I wonder if this only me (Cause my IE6 is a multy installation of IE versions) or if it happens to real IE6 and maybe 7.
In that case, anyone knows how to fix this?

(I have seen the charset suggestion in Google but it doesn't work for this issue)