Thank you for the update. Started the new client up, got an error, closed the client, restarted and now working perfectly. Stupid me, didn't grab the error message before restarting, sorry!
EDIT: This was the error message, taken from this thread.
[iNFO ][05/09/14 01:36:20 AM]: Loading client...
[ERROR][05/09/14 01:36:20 AM]: Failed to load client!
java.lang.NullPointerException
at org.osbot.LpT9.run(ki:673)
at java.lang.Thread.run(Unknown Source)