Thanks for the message. I have run several tests: one with a Carbon100 txt file which Sandy sent me and was made using the text editor on the MAC; one where I opened the txt file on two different WIN 7 platforms (one is WIN 7 which has never been updated and one which has been updated via windows update). In both tests, the txt files opened without a problem and created the expected .quad file. So, without specifically having the txt file you were working with and knowing the version of the QTRgui, it is hard to say why you have seen those issues.
But good to hear that you have resolved the problem.
Cheers,
John