I installed version 8 software using msi pack and created postgres user
and one other.
On opening pgAdmin login form - couldn't overtype User-name postgres and
clicked form close icon (Red X).
MsgBox said "An error has occurred. Couldn't create a connection
dialogue!"
Clicked OK and Windows showed message "PostgreSQL tools has encountered
a problem and needs to close.
We are sorry for the inconvenience" etc.. This message repeated once
more when clicked, the pgAdmin then closed.