i have just noticed something, i should have added more lines before testing so i did just that, i cleared the text file and added the following:
TEST:0.0.0.0-0.0.0.0
TEST:0.0.0.1-0.0.0.1
TEST:0.0.0.2-0.0.0.2
TEST:0.0.0.3-0.0.0.3
TEST:0.0.0.4-0.0.0.4
i then proceeded to remove the line...