Come to think of it, I found a rogue line in maniacbug's bootloader, which I deleted:
:020000000504F5 <----- delete this line
:020000021000EC
:10FC00000F92CDB7DEB7112484B714BE81FFF1D0B7
:10FC100085E08093810082E08093C00088E180933A
:10FC2000C10086E08093C20080E18093C4008EE032
:10FC3000CAD0209A26E080E39CEF31E090938500C3
:10FC40008093840036BBB09BFECF189AA8952150B4
:10FC5000A9F700E010E0EE24E394E1E1DE2EF3E00A
:10FC6000FF2EA5D0813471F4A2D08983B2D08981CE
:10FC7000823809F48BC0813811F484E001C083E03C
:10FC80008FD08BC0823411F484E103C0853419F421
:10FC900085E0A7D082C0853591F489D0A82EBB24F9
:10FCA00086D0082F10E0102F00270A291B29812F4A
:10FCB000881F8827881F8BBF000F111F6DC08635D6
:10FCC00021F484E08ED080E0DBCF843609F040C0A0
:10FCD0006ED06DD0C82E6BD080EE0030180718F4AF
:10FCE000F801F7BEE895A12C51E0B52E60D0F501E2
:10FCF00081935F01CE16D1F7F0EE00301F0718F0A8
:10FD0000F801F7BEE89565D007B600FCFDCFF80115
:10FD1000A0E0B1E02C9130E011968C91119790E029
:10FD2000982F8827822B932B12960C01E7BEE8951B
:10FD30001124329682E0A030B80761F785E0F8011F
:10FD400087BFE89507B600FCFDCFD7BEE89525C074
:10FD50008437A9F42CD02BD0B82E29D03AD0CB2C74
:10FD60004801F40186911CD00894811C911CCA940E
:10FD7000C1F70F5F1F4FBA940B0D111D0EC08537D1
:10FD800039F427D08EE10CD087E90AD085E078CF0E
:10FD9000813511F488E017D01CD080E101D061CF0B
:10FDA0009091C00095FFFCCF8093C600089580918C
:10FDB000C00087FFFCCF8091C00084FD01C0A895E2
:10FDC0008091C6000895E0E6F0E098E1908380839A
:10FDD0000895EDDF803219F088E0F5DFFFCF84E190
:10FDE000DFCFCF93C82FE3DFC150E9F7F2DFCF9128
:0CFDF000089580E0E8DFEE27FF2709946B
:040000031000FC00ED
:00000001FF
I couldn't see the point of that, so that was the only real change I made.
Oh yes, and the changes to the 0xFF I mentioned, are really an artifact of my conversion process. They weren't in the original bootloader file anyway.