Need some help !

I've build the simple interface and tried to code my mk4 but it keeps giving a timeout. I tried setting the time-out to higher values (2000) but doesn't help.

- I observe a continual stream of Ibus traffic on NavCoder, and can see the commands being sent on the log window.
When scanning I most often get only a list of Devices that did not respond....
but sometimes I get a "Device found and are communicating", but it allways tells me that "No ideentification data available for this device"

- E46 Touring -04 Mk 4/1-91
- Navcoder 2.0.17 and 2.5.22
(unreg. for the time beeing, but the scan results is the same - and I'll be happy to reg. if I can get it to work).
- Ibus, V+, Earth - taken from the CD Changer.
- XP pro

I've checked my hardware and connections several times.

The Log can look like this:
21.09.2008 18:41:14: NavCoder started
21.09.2008 18:43:47: Read TV settings - Error when reading TV settings: Timeout (no response)
21.09.2008 18:44:07: Read Nav Settings - Error when reading current nav settings: Timeout (no response)

Any hints would be greatly appriciated !!

Regards
husvik