Hello i have two MSX2 HB-F9s model, i changed the ROMS with update to MSX2+, same code in roms burned with wilem for both computers using eproms 27c256 and 27c512 i get different boot images for each computer:
http://img574.imageshack.us/img574/1738/bootmsx2diferences.jpg
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I dont know why using same code in eproms i get different colour in basic in each computer, will be great to know, probably this is not important thing, but i´m intrigued why this happens. Another thing is related to MSX2 HB-F9s that you could see in picture with the basic all in BLUE, if i put any cartidge on it and then i boot the msx i can hear a sound like a "diiiing......doong" seemed like a bell, this HB-F9S hardware look much new when compared with the other ("older") HB-F9S, in the "older" HB-F9s this sound dont appear present when a cart is inserted. Strange...
This "diiing...doong" sound...why appear in one HB-F9s and why not in the another?

In this case: grab an MSX2 BASIC book, and have a look at SCREEN, COLOR, and SET SCREEN commands. Beep sound stored with that too, or was there some separate SET BEEP command? I forgot...
If that still gives a different behaviour for identical machines, perhaps the backup battery is dead on one of them (so that defaults are reset whenever you switch it on).
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