First of all, thanks for trying to help. I'll reply in parts:
- Yes, the drivers from HP support seems to be exactly those. I have also tried downloading one from Broadcomm's website (yes, you guessedit right), but without success as well.
- HP support was useless as I can only try the chat, and to a limit extent as I am outside the US with an US notebook. Local HP doesn't touch my notebook as they say they only accept local ones. I haven't been able to reach the technician that swapped my mobo, so I'll keep trying reaching him.
- The HP Wireless Assistant is also useless. I have tried that one, but it simply showed me I had no connection, and didn't offer any "tuning" options (like turning devices on and off).
- The BIOS from this notebook is real crap, I'll tell you. It gives me barely no info at all. So there was never an option there to enable/disable the WLAN device. I can only change boot order, enable/disable boot from CD/DVD and do HD checks from therer. Can't even over/underclock the processor, for example.
- Yes, I did a complete clean install. And everything worked fine for almost 2 months. I am currently installing another instance of Win 7 on another partition hoping it can work. But I'm not too keen on that one
Either way, many thanks for looking into my problem...