I've been using v1.23.86.1 (md5sum: dd8dfdfca6b72462d9db8032f78631c8) in Karmic for the past few months without issue.
In Jaunty v1.20.79.0, v1.22.82.0 & v1.23.86.1 seemed to work but I only used v1.20.79.0 for a prolonged period of time.
I've been using v1.23.86.1 (md5sum: dd8dfdfca6b7246 2d9db8032f78631 c8) in Karmic for the past few months without issue.
In Jaunty v1.20.79.0, v1.22.82.0 & v1.23.86.1 seemed to work but I only used v1.20.79.0 for a prolonged period of time.