mihalako 0 Newbie Poster

HI!!
i double click My Computer then c (hard disc) but it is not opening
and gets me back to my desktop.

a message says that''DRWTSN.32EXE MODIFIED MEMORY OF EXPLORER.EXE''

I OPENED DR WATSON AND IN THE APPLICATION ERRORS WRITES
C:WINDOWSEXPLORER.EXE c0000005 <NOSYMBOLS>(017E0710)

WHAT IS THIS ALL ABOUT? I USE THE AGNITUM OUTPOST FIREWALL IF THAT IS A
HELP TO YOU.
PLEASE WRITE ME IF YOU KNOW THE SOLUTION.
THANK YOU FOR YOUR TIME.
JOHN FROM GREECE