I have found a solution!!!

A friend adviced to me to remove Mcafee all together from my laptop and voilá the Roland SD-50 driver installed itself automaticly (as prommissed)!

I need to fine tune my driver setup in BB to be 100% back to where I was, but tomorrow I am sure it will all be OK again.

Thanks to Mat and Noel for trying to help:

Brgds,
Tonnie