Tried on the IBM5150, the following were encountered..
1. The punctuation doesn't appear when pasted in.
2. The saved cassette file has no audio, which is why it can't be loaded back.
3. There's this warning (which has nothing to do with the problem)
Quote
Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_param Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_enabled Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_period.attoseconds Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_period.seconds Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_start.attoseconds Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_start.seconds Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_expire.attoseconds Attempt to register save state entry after state registration is closed! Module timer tag pc_mouse_scan name m_expire.seconds
Next, tried on the IBMPCJR.. the paste worked, program ran (horrible game by any standard).
However the same tape problem appeared.
Something for whoever maintains it these days (if anyone).