Hi Ole,
I have installed soapUI 1.7.5 Pro beta and the same issue occurs.
I had listed the contents of the .keystore file in the prior posting.
It seems soapUI has a problem reading the keystore with the error:
2007-07-23 17:06:09,955 INFO [HttpClientSupport$Helper] Updating keyStore..
2007-07-23 17:06:09,971 ERROR [HttpClientSupport$Helper] Failed to load KeyMaterial [C:\Documents and Settings\A416304\.keystore] org.apache.commons.ssl.ProbablyBadPasswordException: Probably bad JKS password: java.io.IOException: Keystore was tampered with, or password was incorrect
2007-07-23 17:06:09,971 INFO [HttpClientSupport$Helper] Updating keyStore..
2007-07-23 17:06:09,971 ERROR [HttpClientSupport$Helper] Failed to load KeyMaterial [C:\Documents and Settings\A416304\.keystore] java.security.KeyStoreException: No private keys found in keystore!
