Sorcha, what's an "HSH" icon? If that's the name of the file ("HSH.mid"), it's OK, but if that's the extension (as in "tune.hsh") then it's not a midi file. Should be "tune.mid."

To find out the names of things, and the extensions, right click your mouse on the icon and select "Properties." The Mid2txt icon should say "Shortcut to MS-DOS Program. If you click on the Program tab at the top, the Cmd Line block should have a string that ends with "MID2TXT.EXE"

If it says something else, try the other icon that looks the same.

When you right click on the tune icon and select Properties, you get the General tab. It should say (right under the name) "Type: MIDI Sequence."

If you want, you can e-mail me and send the tune. I can check to see if I can get it to convert. (And hear it!)

I'm not exactly sure what a "floating point" error is, so I may be way off on what I'm trying to do to help you. I'm not an expert in MIDITex, so if anyone's helping you who knows more than me, it would be a Good Thing.