Hello to Aberystwyth! I once came through that place whist being on holiday in Pembrokeshire.
Anyway, I think this is where I unmask myself and show my being a bleeding newbie to Linux (albeit not to PC's, which I use since 15 years).
I did not edit my XFree config file, as I didn't know that this is actually necessary, and if so, what I should edit.
The new dirver is loaded though - when booting the system, I now get greeted by a Nvidia splash screen. Also, 3D proggies such as racer will now start which was not previously the case. However, the resulting graphics runs very much like a tree orgasms - v e r y s l o w l y .
The corrupted log file I don't know about - I just looked into it with KWrite and it looked o.k, if cryptic.