Domain Authentication

Hello,

I work in a domain environment with proxy server etc.

As some point I assisted a user with an issue and used my username and password on the computer (I used AD Audit Plus to find out what computer it comes from) However, the system has remembered my credentials and now tries to authenticate with it every once in a while which locks my account out!

How can I flush my credentials from the system?

Any help will be appreciated.

Regards,