[Ohrrpgce] SVN: teeemcee/13404 Better handling of failed gfx backend switching

[subversion at HamsterRepublic.com]

teeemcee
2023-12-15 02:03:17 -0800 (Fri, 15 Dec 2023)
167
Better handling of failed gfx backend switching

If switching fails it no longer saves the config, and you get a message
suggesting to check the debug log for details.
---
U   wip/allmodex.bas
U   wip/allmodex.bi
U   wip/backends.bas
U   wip/yetmore2.bas