Tashanna let me know that Slacker has been quietly updated to v1.1.23 today. It now is sitting at a whopping 1.4mb download! This is an update from the last 1.1.11 version. Sadly there is no change log so I cannot say if it is worth upgrading but if you are having issues it cannot hurt.
You can pick up the latest version at www.slacker.com.