My wife's small business just upgraded from CA 2003 to CA 2004 in October. This product is installed on W2K computers (4) & 1 XP Pro. We have a 5 user license, but periodically one of the machines (not always the same one) will revert back to "trial" mode and give the splash screen to register on startup. Re-entering the registration data makes it go away, but this has happened 3 or 4 times since October. Is this a bug?