Ok, so I might have noticed something recent when getting a sysex from the mfc using mfc-edit... I get an error which I may have overlooked before. Here's the log:
11/25 8:53: Info: Mfc user Home : 'C:\Documents and Settings\xxxxxxxxxx.xxxxxxxxxxxx\Desktop'
11/25 8:53: Info: MFC-Edit Vers : 4.2, build #3,241
11/25 8:53: Info: Operating Sys : Windows XP, 5.1
11/25 8:53: Info: Java Version : Oracle Corporation, 1.8.0_66
11/25 8:53: Info: Licensed to : xxxxxxxxxxxxx
11/25 8:53: Info: License key : 10b5-bfca-b193-3ea9
11/25 8:54 MIDI DEV: USB Audio Device
11/25 8:54 Receiving: MFC-101 Mark-I/II dump.
11/25 8:54 Receiving Firmware: 3.8
11/25 8:55 Loading file: My MFC-101 Dump.syx
11/25 8:55 Firmware ver : 3.8, Model: MK-I/II
11/25 8:55: Info: SUCCESS - File My MFC-101 Dump.syx loaded.
11/25 8:55 Barf! Exception selecting illegal index (41) on IASwitchLink ComboBox