Microsoft Outlook 2007 In Microsoft Office Professional

There seems to be a "flaw" or what look like an Flaw in Microsoft Outlook
2007, when i start outlook 2007, I insert my name, and other credentials,
what is needed to run Outlook, outlook's start up fine collect mail, send
mail and god forbid, also delete mails.

Then as usual I close outlook, go on with my usual business, such as surfing
the net for a spell, then come back to check on my mail, and by some
mysterious way, outlook wont open, when I click the icon on the processline,
then I restart my windows vista home premium, and it can open again, but only
to show me a window with following comment "? Outlook was not started
correctly last time, if you stert outlook in failsafe mode position, it will
be easier to correct and locate a startproblem, some will probbely be
deactivatde ib this mode" do you want to start outlook in failsafe mode to
what I answer yes, nothing much happend though, same thing after restart and
opening of outlook same thing happend, wont open when clicking on the outlook
icon?

It should be a standard program from Microsoft and nothing new, so why it
aint working probberly, only god knows. I dont know if I have done something
wrong or I need to do something more then just inserting my name,
account-number and password?

Somebody have an idea?, sorry about my english, aint that good

Regards

Bent Jensen