Same problems here. Was working fine until yesterday evening. I was working on programming a Harmony then adding buttons to flirc, when it started disconnecting at every key press. It will say transfer error and immediately crash the gui. When I do get it to stay open, I can't erase a particular button. Have tried downgrading, upgrading, clearing config, loading config, can't seem to get it to work like it did for the past week. All of us with this same problem can't be experiencing a bad usb port, that would be too much of a coincidence. Maybe it's a government conspiracy. Are there certing commands using the flirc_util to completely clear and start over? How do I know if I'm using the correct gui with the correct firmware? I have no idea. I loaded the latest rc.4 so my gui says version 1.0 and firmware says 255.12
What has happened to our flircs? Has the internal hardware fried?
Did this on a win7 laptop and my win7 htpc, same connecting/disconnecting and transfer errors.