I got your point. I will have to check my gps first (now I am at work, so I can't :-) ) and then try to do anything. I will not risk in anycase.

I am not at all familiar with gps devices and terms like unl files,Jet mouse etc. I will have to look them up.

I have also the option of leaving my gps as it is (with Europe and romania maps) and add the Bulgaria map to my mobile (Nokia 5800) running Garmin mobile Xt. I hope this is possible and I hope it will not rain as I will be on motorcyle. :-)

Thanks for all the info.