Party skins with new update of Zonealarm - Anyone else?

A couple days ago, I updated my firewall (zonealarm).
Now when starting up a party skin, I get a warning pop-up that the app. is trying to track mouse movements, and would I like to prevent it from doing so? I figure why not. Party probably does enough snooping (and I'm not running pokeredge or other banned software).
The only noticable effect is that I can no longer chat. I see others chat, but mine is blocked. Strange?