Outlook email passwords and Microsift visual basic

I wonder if anyone could comment on a couple problems of I'm having after
buying a new machine with Vista Home Premium preloaded.

1: Everytime I switch on Outlook and try to log on to my e-mail accounts all
previously entered passwords seem to erase themselves (despite saving in
regular fields) and I have to re-enter every time to access my accounts.

2: Every time I open or close any word document a box opens headed
"Microsoft visual basic" with the message "Compile error in hidden
module:AutoExec". I've never seen this before and it slows down dramatically
the opening and closing process or simply just "freezes", for any word
document.

Any thoughts? Thanks in advance.