Hm that's unfortunate... but thanks for letting me know! I had the file analyzed by virustotal.com, and 3 out of ~70 scanners indeed mark it as suspicious. Too bad one of those three is not some obscure scanner, but Microsoft! :-( It must be a false positive. I guess that's what you get for using a custom engine (C#/.NET, built on OpenGL). I looked into it, and there are some things I might try to prevent this, but I don't think I'm not allowed to change the submission anymore. So I guess I won't have many ratings this time... :-(