Just purchased (from Ebay) a new ... and my first GPS/DVD unit - single DIN, installed it and all was well for a few days and then when Jumped in the 4wd it stated that it could not find the GPS software, played around a little and discovered the default path was /storagecard/NWDSoftware.exe. whilst I browsed the card from the screen I discovered an .exe file called iGO8, so I pointed the unit to that as there was no file called NWDSoftware.exe anywhere on the card and hey presto it worked.
I was thought I was pretty smart (hey all this GPS stuff is new to me) and all was well for about a week, then the problem was re-visited, applied same solution works OK for a while, but now the problem resurfaces every time I start the car.
I figured that perhaps the SD card was dodgy, bought another card, copied the files over ... same problem, I also noticed that with the old card I had to shut the system down, remove and replace the SD card before I could see the directories on the card.
After some searching I found a file called YFAUTORUN.INF in the root, which had the directive "\sdmmc\iGO8\iGO8.exe" in it... ahuh! I will point the path at this .INF file... the unit does not see the .INF file, damn
I was about to change the change the name of the iGO8.exe file to the default NWDSoftware.exe when I stumbled (after much googling) across Hollowman's tutorial / thread which he started in November, so I have applied that to my SD card (the new one) and will try that out tonight when I get home.
Not sure if anyone has had a similar problem however I'm feeling pretty positive that I'm on the road to a fix I just hope its not a fault with the multiple SD contacts in the unit itself, I think this due to the fact that the OS defaults to another path.
Another thing I had thought of was that maybe the unit is losing power from the non-switched supply, as it defaults to the initial setup screen on start up, I checked this out and all seems OK, especially as I went bush on the weekend and the unit was subjected to some rough stuff (about 6 hours worth) and did not fault at all.
I would like to thank Hollowman and all others that contributed to that thread, (which I may add took some reading, but I got thru it all) as it was very informative and I'm a lot more familiar with this GPS stuff as a result.
I will let you know how this went once I have tried it out.