Database applet error in web browser

hi to all
i have query in applet.
MY APPLET IS USING ODBC AND CONNECTING TO ACCES.
I HAVE CREATED POLICY FILE SO THAT I CAN DISPLAY APPLET IN APPLETVIEWER.
APPLET RUNS FINE IS APPLETVIEWER WITH FOLLOWING COMMANDLINE
Appletviewer -jDJava.security.policy = pol label.htm.
however when i try to display applet in web browser, it display
following error message "load-Can't instantiate class"
any help will be welcome

@MITZ:
Christ, stop hijacking and multi-posting this same question all over the place!!!
http://forum.java.sun.com/thread.jspa?threadID=707757
http://forum.java.sun.com/thread.jspa?threadID=5186205
http://forum.java.sun.com/thread.jspa?threadID=5190321
http://forum.java.sun.com/thread.jspa?threadID=5187789
http://forum.java.sun.com/thread.jspa?threadID=5190317
@people who want to answer MITZ:
I suggest doing so in the thread which was posted in the Signed Applets section of this forum:
http://forum.java.sun.com/thread.jspa?threadID=5190324

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