I just finish making a wlirc, work good with my alpine remote control, I am using girder with igor plugin, the problem is that I don't have any more serial port on my computer, so I bought a serial to usb coverter, it came with software, I installed it, and my system recogonized it as port3. Now when I go in to girdle and change the setting on igor plugin, there's 4 com port. I have tried all 4 setting, still girder can not capture IR code from my remote. Is there a special plugin that I need for this? I searched, and saw some people say it work, but does not mention how.