Since we're talking about motherboards and chipsets, the problem machine here is;
Shuttle AV49N with VIA P4X400 and VT8235
GeForce 4 MX440 64MB.
The same drivers installed just fine on MDK9.1 on another machine; Athlon2400, Asus A7V333x, VIA KT333 & KT8235, GeForce4 MX 440 64MB.
Is there anything else I can try on the P4 box? Or am I best to use an older driver (4191?), which I guess will have to be compiled for the MDK9.1 kernel.