Okay, I usually don't worry about this sort of thing, but what is going on here?
When I went to go check a poll, specifically the 'What's your favorite Bird Pokemon?' one, it told me I had already voted. In fact, I had not, and the choice it said I had made was one that I normally would not have chosen. While I wouldn't normally be worried, I recently logged on to Pe2k on a computer that was heavily infected with trojan horse programs and other password-stealing programs. I know that such programs wouldn't usually go for a forum password, I'm still worried. It could be a glitch, but if it isn't, what do I do?
EDIT: I did change my password since then. But is there anything else?