I've uninstalled and re-installed BIAB 2012. The current version of Quicktime was already installed, but when I opened the BB2Go dialog [Window=>BB2Go (prepare mp4 files for iPhone or Android version)...]
I was told "Error: QuickTime not installed or available. Install and reboot."

I downloaded and installed Quicktime again, and rebooted, but I get the same message.

The Band-in-a-Box "Server is running correctly!".

I noticed that when I install BIAB 2012 on my Drive F (an external hard-drive with 200G of disc space) I get a warning that there is only about 1G of disc space available and more than that is required (I didn't record the exact figures. I've ignored this, and the installation appears to go ahead. Is it possible that this is why BIAB2Go isn't detecting Quicktime? I don't think I was offered a choice of installation directory when I installed Quicktime.

Incidentally, the BIAB Server icon in the System Tray doesn't appear after the first reboot when "Auto-run service when Windows starts" is selected, although the BB2Go dialog reports it's working OK.