tsm3000. please post tech support issues to brashmonkey.com/forum. aside from not wanting to spam scirra with spriter specific issues, it gives us a central place to track and respond to bugs.
this is the first virus report I've heard of. there's definitely no monitoring going on, and it doesn't do anything internet related at all.
as far as the resource hog thing. We're aware of it. We're not even halfway through development, there's plenty of time/room for optimization.
@Azu, in the beta, you can export frames as sequential pngs, with magic magenta for transparency. the pro version will have true transparency when that releases.
thanks for your interest guys.
still climbing fast