Getting "bad sum" error after CTRL BREAK

[gl40014001]

After *INSERTing the ROM on a Master 128 and CTRL-BREAK , I get a "Bad sum" error. Pressing CTRL-BREAK or even BREAK-ESCAPE a few times clears it so that I see "Invalid drive".

Once I see "Invalid drive" I do *MOUNT 0 . Sometimes I then see "bad sum" error again. CTRL-BREAK clears this, and I get to a BASIC prompt and can access the hd image fine.

All other ROMs besides BASIC *UNPLUGged.

[hoglet67]

This is expected behaviour I think.

After inserting the ROM, you need to force a power up reset with:

*FX 200,2

or

*FX 151,78,127