  We study simply-laced simple affine Lie algebra bundles over complex surfaces
X. Given any Kodaira curve C in X, we construct such a bundle over X. After
deformations, it becomes trivial on every irreducible component of C provided
that p_g(X)=0. When X is a blowup of P^2 at nine points, there is a canonical
E_8-bundle E over X. We show that the geometry of X can be reflected by the
deformability of E.
