system error #1
 

I buy a new ethernet card and installed it in my computer,
my KHP does not work anymore, i always receive the system error #1.

Re: system error #1
 

The error is associated with the fact that you may have REMOVED the Network Card that you used to register the program. Any chance you still have that card lingering on your desk?

If you put that card back into your computer, you should be able to use the program. If you can't use that card, I would suggest asking for a new serial number, however, that is at the option of MTU.