R9 280x driver problem

I have two new R9 280x GPUs and trying to get oclhashcat running with them. At first oclhashcat reported I was using broken version of driver. I found a reference saying to use 13.1 Catalyst, so I have regressed the version to 13.1. Now, oclhashcat tries to run but just crashes without complaining about broken driver.

I gather others are using these cards OK, can someone please share details of driver versions that will work? Thanks