File Permission Problem

Hi I was trying to make an applet (should i post this in the applet forum? will people yell if I post in both places??)

but I ran into this problem and I have no idea what it means or how to handle it:

createGUI didn't complete successfully
java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
at HaploTypeBrowser.HaploDisplay.init(HaploDisplay.ja va:14)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionR unnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied (java.io.FilePermission http:\avery.agron.iastate.edu\JavaBrowser\data\B2. txt read)
at java.security.AccessControlContext.checkPermission (Unknown Source)
at java.security.AccessController.checkPermission(Unk nown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.util.Scanner.<init>(Unknown Source)
at HaploTypeBrowser.HaploTable.<init>(HaploTable.java :96)
at HaploTypeBrowser.HaploDisplay.createGUI(HaploDispl ay.java:29)
at HaploTypeBrowser.HaploDisplay.access$000(HaploDisp lay.java:7)
at HaploTypeBrowser.HaploDisplay$1.run(HaploDisplay.j ava:16)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)