dear community

I am puzzled over my office applications programs. During the early part of
the day i was working with my Word application and it was all OK. After
shutting down my PC for lunch break, when I re-started my PC and was about to
continue doing my work in Word, suddenly the Application "quit" automatically
on me immediately before I can start using it. I tried on the other
Applications, Excel, PPT, and Outlook and all just wanted to "quit".

Can anybody please help me to solve this sudden "disaster"

I am using Office 2000 version

thanks in advance
--
oldLearner57