>Ok, if it happens again, I will need the exact message. I need to determine where that one is coming from. The message about logging in elsewhere and going back here will result in another message which is totally different. So, this is probably not the case.


Just got the message in the bottom pane: at 11:47 am EDT

Exact message:
-------------------
Forbidden
You were denied access because:
Access denied by access control list.
-------------------


In this case, I pressed the [BACK] browser button and tried again and it worked.

[Update]: Happened again at 2:18 PM (14:18)