[superfrog]

Okay simplest test case comparison. Two configs, only difference is working has PC speaker disabled, broken has PC speaker enabled.


Working case, I boot with BB Install floppy v2.0 (Known Verified Dump [!] downloaded from Internet Archive TOSEC) and it boots, I open PC Mono, PC window opens as expected.


Broken case, I boot same floppy, long pause right after x86 in status bar switches from STOP to RUN (this is exactly when BindDrivers is trying to load janus.library because date displays immediately after long pause, and setclock is first command following BindDrivers in startup-sequence), after long pause continues to boot to WB screen. Then when I open PC Mono, I get Cannot Find Library error.

By "sound automatic switch" you mean "Automatic Switching" in sound config panel? Switching that off doesn't affect outcome of this test.