I have found the answers for RHC1 and RHC2, but on both of them when I "click here" to go to solution.php I get a blank white screen, no source behind it. Is that part of the challenge (to work out how to submit answer) or is it a problem?

I am using firefox, but have tried it in IE and does the same.

Hi,

thanks for the report!
This was en error and not part of the challenge. I fixed it.

Cu, Erik