Missing Inherent and Residual Bar Graphs in RM

Hello.

I am having an issue regarding the inherent and residual bar graphs in Risk Management 10.

I have loaded risks, and filled in the usual amount of information, but i get an error stating that "Some risks are hidden, because no risk level exists for them".

I have attempted to look and apply these risk levels, and I am sure that they are there, but if anyone knows exactly what information is needed, and what other things I need to look out for when this error