I am able to replicate the problem using my logon.
I go to TASKS, MY TASKS, Change to COMPLETED TASKS and change the PERIOD to anything other than ANY and it errors out:
Requested page is not accessible. Please send information about this error to the following E-mail address:
I was able to change his PERIOD back to ANY and he has access now, however the above error will still occur if the PERIOD is changed from ANY.
Any suggestions or thoughts?