This might sound like a stupid question, but I'll ask it anyway. I have the chance to exchange my //c (old 255 rom) for a //c+. I've heard that they use a 8 pin serial port, is that true? Anyway, is there anything I should know about the //c+ that might be a problem? I know that they have a 3 1/2 inch disk drive, is is a good idea to trade? Thanks in advance.