User accounts-WinXP

When I tried to print a new portfolio manager (Money.MSN.com), I got the error message:"this file does not have a program associated with it for performing this action. Create an association in the Folder Options control panel".
I tried doing this without success. A Program help e-mail answer suggested I try after establishing a new user account. Which I did and it worked after having to set up the new user account.

My question is: why would this be?
I'm the only user of this home computer and as such am the administrator.As
the only user I should not have to have more than one user account.

Any ideas as to where this problem lies?

hgibbs