After using vi or other full-screen applications, the Wyse60 emulation won’t scroll back. It doesn’t matter if you use the vertical scrollbar or the keyboard commands.
This is due to the way Wyse60 terminals work. Full-screen applications such as vi often put the terminal into a different screen page, which clears all memory of the previous screen page. Exiting the application sets the terminal back to screen page 0. Essentially, there’s nothing to scroll back to at that point.
Disabling screen pages in Wyse60 will cause problems with some applications. So no option to do so has been added to TinyTERM.
CR 396
CR 505