Dear Paul and WeatherCat troubleshooters,
I didn't install 2 different drivers or install the same driver twice, it just appeared out of nowhere.
Sorry, you have to understand my jaded sense when it comes to Macs misbehaving. I didn't mean at all to suggest that you had anything to do with the two drivers. On the contrary, all I meant is that -
*sigh* - I've seen the installer fail to remove a previous driver. However, I haven't see it do any harm on my computer. Nonetheless that might not be true for everybody Therefore, it is a good idea to look to see if there are multiple drivers and when troubleshooting connection problems, it is indeed prudent to remove all existing drivers and then try a fresh installation.
There is a procedure to manually delete drivers, but I've forgotten what it is and it never made it to the Wiki. Does anybody remember how to dig into the file system and manually delete all driver files?
Edouard