On one instance of CA TPX, Shift-ESCape key brings the user back to the TPX menu. On other TPX nothing happens.
1. Since TPX does not allow for coding Shift-ESC, verify how the emulator keyboard definition is interpreting Shift-ESC.
2. TPX allows you to specify how you would like to have the ATTN key behave (SMRT User Default Parameters - ATTN Option).