Is anyone familiar with this error when reseting passwords
in Oracle on Windows NT?

I expired my system passord and I cannot renew the passwor
because of some bug (1225555)
Oracle says that the bug has been fixed in
release 8.1.7.

SQL> alter user system password expire;

User altered.

SQL> connect system/navs!ne3x@risk
Changing password for system
New password: ********
Retype new password: ********
ORA-00988: missing or invalid password(s)

I there a work around this? How can I reset the password
using Server Manager?

Please help!!!!