java.lang.NullPointerException error

Hi,Hoping that Aaron or Tim Verelli might be able to use their expertise to guide us to resolution here (we are in a sales cycle of sorts with Jim Krieg and currently use Lectora OEMed as Saba Publisher 5.1).Several learners from a single partner organization are experiencing an error, where the learner sees "Text Block, Title Auto Generated, Text Block, Text Block" on the screen and on the bottom left it reads "Done but with errors on page". The text in the Java Console is as follows:-Java Plug-in 1.5.0_04Using JRE version 1.5.0_04 Java HotSpot(TM) Client VMUser home directory = C:Documents and Settingscstrickland

c: clear console windowf: finalize objects on finalization queueg: garbage collecth: display this help messagel: dump classloader listm: print memory usageo: trigger loggingp: reload proxy configurationq: hide consoler: reload policy configurations: dump system and deployment propertiest: dump thread listv: dump thread stackx: clear classloader cache0-5: set trace level to

java.lang.NullPointerException   at TrivantisSignedHttp.sendPostMessage(TrivantisSignedHttp.java :257)   at TitleMgrSignedApplet.sendRequest(TitleMgrSignedApplet.java:1 698)   at TitleMgrSignedApplet.GetParam(TitleMgrSignedApplet.java:1906 )   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)   at java.lang.reflect.Method.invoke(Unknown Source)   at sun.plugin.javascript.invoke.JSInvoke.invoke(Unknown Source)   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)   at java.lang.reflect.Method.invoke(Unknown Source)   at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)   at sun.plugin.com.MethodDispatcher.invoke(Unknown Source)   at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)   at sun.plugin.com.DispatchImpl$1.run(Unknown Source)   at java.security.AccessController.doPrivileged(Native Method)   at sun.plugin.com.DispatchImpl.invoke(Unknown Source)java.lang.Exception: java.lang.NullPointerException   at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)   at sun.plugin.com.DispatchImpl$1.run(Unknown Source)   at java.security.AccessController.doPrivileged(Native Method)   at sun.plugin.com.DispatchImpl.invoke(Unknown Source)Any assistance you can provide would be much appreciated.Regards,Jonathan DeanNetwork Appliance. Edited By: jdean65 on 38573.6934953704