Whenever i try to create a text file or insert into or delete data from table thru ASP scripts, i get the error msg 'Permission Denied', although the same program works properly in some other system. Pls help.   Sometimes I get 'Must be an updateable query' although the query is correct and works with some other student in some other machine.   I've been told that IIS should be loaded from the same CD as Windows XP has been loaded, or else such problems will occur.  Is this true?

Software/Hardware used:
IIS, Windows XP, notepad, IE