SVN with SSH: can't authenticate

Hi

I'm trying use SVN with SSH (svnssh:// protocol) for some new modules. My private key is password-protected, and I have verified I can use it from the command line. I haven't used the svnssh protocol with IDEA till now.

On trying any VCS actions, I'm prompted with the Authentication Required dialogue; I enter "private key", select my key file, enter the password for the key file, port is 22--the dialogue reappears (title changes to Authentication Failed).

Is it possible to turn up logging somewhere to help diagnose the problem?

java version "1.6.0_05"
Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
Java HotSpot(TM) Server VM (build 10.0-b19, mixed mode)

Ubuntu 8.04

IntelliJ 7.0.4


Thanks
Patrick