SeasOnpass 0.7.9: Install defaults to 4.3 instead of 4.4.2 every time

In tried to jailbreak my ATV2 about four times now, for firmware version 4.4.2, but when it comes to the uploading IPSW stage SeasOnpass defaults to the old 4.3 version automatically, every time, leaving iTunes with a 16XX error, and SeasOnpass saying that it has succeeded in the jailbreak. What’s wrong? My cable is fine, no other iOS devices are connected.