Are you constantly prompted to login while using Internet Explorer and GroupWise
WebAccess? It appears to be a new setting in IE7 and IE8 that causes the problem.
Microsoft has made a modification via their Automatic Update service that
affects your ability to reliably use the GroupWise WebAccess system from a
Windows computer. This seems to be limited to their Internet Explorer web browser
versions 7 and 8. Earlier versions do not seem to have this problem.
While using GroupWise WebAccess, the act of changing screens or refreshing
your inbox will prompt you to login again. After you re-login, a login screen may
keep randomly re-appearing.
Disabling the Smartscreen Filter seems to resolve this problem