So I work with computational chemistry, and we usually work with files on windows boxes, however we've started the transition over to Mac Pros. I have my macbook pro, and I've installed the necessary software, however I have a problem. We use Notepad to make the input files on XP, because it does not inbed any invisible characters (besides returns etc.) However, whenever I transfer a file (.txt) made with notepad over to my mac, the file will not run in the program we use. It gives an error that usually means you have invisible characters in your input file. So if I retype the file in Textedit, (NOT copy and paste), the file works fine. The exact same (looking) input file. Does anyone know what's going on here, or know of an application that will let me see these pesky invisible characters? I've tried word, but couldn't find what I wanted, and... well... I hate Word for mac. It absolutely sucks. Thanks in advance.