One of the members posted an excellent article on sorting out the windows which I have done myself, frankly I have yet to find a dealer who could undertake the work detailed in this article properly. In the U.K. our VX's are not recognised by the main Isuzu importer and they will not help at all (I have phoned six times about technical matters and every time I seem to get hold of a different dork who repeats the same brainwashed mantra we dont no anything about them) anyway as I have had no alternative I have undertaken to sort the windows out myself folowing this article and it works! It may seem a bit daunting to start with but it can be done in a few hours and in the end you have a feeling of satisfaction. If you have to replace the motor (which does burn out) it can be done in less than an hour if anyone wants a guide to it let me know