Jsam to Citrix probem using Java client on MAC

Hi,

Get the  following error when connecting to Citrix Webinterface using MAC via Juniper SSL VPN Everything works fine until i try and run one of the published applications. After clicking the application java starts and then the following error is displayed:

java.io.IOException: Unable to open connection
      at com.neoteris.NeoterisSocket.a(Unknown Source)
      at com.neoteris.NeoterisSocket.a(Unknown Source)
      at com.neoteris.NeoterisSocket.<init>(Unknown Source)
      at com.neoteris.NeoterisSocket.<init>(Unknown Source)
      at com.citrix.client.io.net.ip.z.a(Unknown Source)
      at com.citrix.client.io.net.ip.z.a(Unknown Source)
      at com.citrix.client.io.net.ip.z.a(Unknown Source)
      at com.citrix.client.module.td.tcp.TCPTransportDriver.s(Unknown Source)
      at com.citrix.client.module.td.TransportDriver.run(Unknown Source)
      at java.lang.Thread.run(Thread.java:637)

Would appreciate any thoughts on this