I've been away for quite a while, and one reason was that the old Model B that I have (256Mb) always had problems with the USB. I built a "Raspberry Pi laptop" using a Motorola Atrix LapDock but the keyboard and mouse kept disconnecting, and there was a very long discussion about problems with the USB implementation on the board, and in the drivers. I decided to leave it in the hope that a software solution could be found. Now, I can't find the thread.
My question is: Can anyone recall this, and has it been fixed? If so, do I need a new Pi, or can I get away with modifying the old one?