Can somebody screw with my "my profile" here?

[tinkthank]

Damn.

How can I unsave the password? How do you purge cookies?

I share the computer with many (University), and whoever it was had obviously had fun with "rate member". I just checked the "my profile" and apparently rated whole bunches of people here (whose stuff I like btw) "one star"; I never would have noticed but that all of a sudden I see I got a rating myself (some of those people took their just revenge). Well I dont care about my own "rating", but apparently those others I supposedly rated do. Well I have never actually rated anyone before.

Ok I will log off -- can you tell me how to "purge" my "cookies"?
thanks.