Chapter 9. Atari-specific questions

Table of Contents
I can't use ttyS3 and ttyS4 simultaneously on my Atari
I'm having problems with my Falcon with Afterburner 040. Any tips?
I'm having strange problems with my PAK030 board in my ST!?!
How do I access my Atari SLM laser printer?
How do I access my ACSI drives?

I can't use ttyS3 and ttyS4 simultaneously on my Atari

This is perfectly normal: ttyS3 and ttyS4 correspond to different physical external connectors on the Atari, but these connectors use the same internal hardware (Channel A of the SCC).