Strange 404 behaviour

Hi there,

I’m trying to set up a webform so that people can join a mailing list from my blog. The form is generating some strange 404 errors.

The form is in a widget and asks for “name” and “email”.

It then redirects people to confirmation pages that I’ve created in wordpress.

But, when people enter a name, a 404 error is generated. When people only enter an email, no error is generated.

So this URL works: http://www.goodbadandbogus.com/invalid-email-address/?address=kjvh&code=-3

But this one does not: http://www.goodbadandbogus.com/invalid-email-address/?address=asdfasdf&name=sadfasdf&code=-3

The only relevant page is one I’ve created at http://www.goodbadandbogus.com/invalid-email-address/ . It seems that when “&name=” is added to the URL, wordpress gives a 404 but otherwise it is happy.

Any ideas why or how I can fix this?

Cheers,
g.