Have been on the PMP Project Risk Analysis Management level 1 course and found it to be very useful, however the certification does not seem to be widely recognised, to the extent that I know have to say it is an APM (association of Project Managers) approved course which holds more weight.
I also agree with the comments made by Marcos, every projrct has problems and risks! Also how many PM's out there go for a refresher course? I have yet to come across the perfect project!