thanks Tink
I think I might know what happened, what I suspect is that the kernel source that I downloaded was a bit slimmed down and when I typed make modules_install it did something weird.
In the meanwhile I downloaded a kernel that seemed to be from a more 'official mirror' and only used 'make modules' after the kernel recompile (all the modules I could possibly need are already installed)
I got it working in sync with the mail from your answer
thanks again for your input