Some errors in weblogin en webregister snippets

In the public SVN (08-01-07) there are some errors in the webusers login and signup scripts.

when trying to login using the sidebarlogin it gives me ta whitepage with this text:

when removing the chunk it does not make a difference

when using the webregister snippet it gives me an error hat the username is empty but I did fill in the username.
when removing the chunk it works so maybe a typo in the chunk?

I have register_Globals set to off

I replaced the whole snippet including the snippet files from a working modx version 0.9.5. beta5 but I still get this same error.

I think somthing in the core files is doing this

Dimmy