InfoPath Dev

I am not having any luck at all debugging this way. I also can not get Infopath to produce the recursive repeating section (my:list) when I drag ''sections'' to InfoPath. There must be something Infopath fundamentally doesn't like about the schema.

Hi Running Infopath SP1/Windows XP. I am no longer able to open my form in Design view as I get the error ''Infopath has encountered an error. The operation failed''. Now, when I rip out part of the XSL on one of my views it works again, but as soon as I drag part of my data source tree onto the form to create the controls, the error reoccurs ...