Key export: exception

Recently as part of the process of upgrading to RS SP2 I followed the
normal procedure to export my crypto keys. Unfortunately instead of
providing me with the key file, it gave me an "External component has
thrown an exception" message on the console. At the same time the RS
service shut itself down.
As it turns out, I already have the crypto key tucked away on a CD. I
went ahead and updated to RS SP2 successfully, but the key export is
still giving me trouble.
The trace log isn't doesn't appear to contain any error information.
Has anyone run into this before? How did you resolve it?I've googled and looked through the knowledgebase, but still haven't
found a solution to this.|||We also had this problem. The solution for us was to amend the
web.config file to <customErrors mode="Off"> (we were using a custom
error handler). If you have custom errors "On" then turn them off and
seeing what happens. It didn't fix the problem but it did give a
proper error page showing what the actual problem was and on what line
of code, etc. Good luck.