I have a strange problem. I have a MKIV, English language (I would like dutch navigation instructions, but still have to pass by a dealer to change this), which I cannot get to give audible warnings.

I tried creating my own patched OS according to the instructions on the first page. However, I probably made a mistake - so my MKIV gave a programming error, and a black screen.

I managed to recover with a clean OS-disk, but I've become very nervous about reprogramming my MKIV with my own patched version. So, i downloaded several pre-patched versions and tried those. Among those was the 'CCFJ' version; but, as several persons already reported, this version does not work with TMC enabled. Probably has to do with the extraordinary amount of traffic jams in the Netherlands, the list of messages is always very long, resulting in frequent reboots. So, frustrated with that, I gave up - I did not even create a patched map disk.

However, this week I gave it another try. I downloaded a pre-patched V32 version which until now does not reboot, even with TMC enabled - so I was happy! This version has, according to several persons who've tried it, dutch warnings and night colors (which I do nog like), and is reported to work even with a english sound setting.

Yesterday, I created my first map-disk (v2010-1). I've removed all non-english languages to fit the map on a single-layer disk, and the disk works fine. I can see the camera's on the screen (icons) - but I do not hear any warnings.

So, I suspect the claim that this OS-version works with a English language setting is incorrect,and that the only reason that I do not hear any warnings is that the MKIV tries to play a non-existent Dutch soundfile. Could this indeed be the case?