I got my Bung GB XChanger with a 64Mbit (8MB) Doctor GB Cart. I'm using the exact same setup I used too 3 or 4 years ago when I used to use this thing a lot. Using Windows XP with the right kind of printer cable. Using GBX-Tool 1.8 by MFM. I have GIVEIO, using GBPACK.V1Z for multicarting. I can erase the cart, I can read data from the cart (ie, gamesaves) and all sorts of shit, but I can't write to the damn thing. Every time I try I get a "write_eeprom error! 0" message. I've tried the cardfix program for 64Mbit carts mentioned here but when I run that it says it's already fixed. Any help would be much appreciated. I'm antsy to get my GBC on.