DWA LITE Error

I am getting the error mentioned below every time I go into DWA LITE mode.

A problem has occurred which may have caused the current operation to fail.

After clicking on show console The further details are

07/22/2008 10:36:13AM A problem has occurred which may have caused the current operation to fail.

07/22/2008 10:36:13AM Invalid argument.

07/22/2008 10:36:13AM http://domino/mail/user.nsf/iNotes/Proxy/?OpenDocument&Form=l_ScriptFrame&l=en&gz&CR&MX&TS=20080722T000844,28Z&charset=ISO-8859-1&charset=ISO-8859-1&ua=ie: 5

07/22/2008 10:36:13AM EIk(“complete”)

I have tried loading the url into another tab and it just brings up a blank page.

This is only in IE at the moment as have not tested in Firefox.

Any suggestions?