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We compute $e^{-AN}$ corrections to the Gross-Taylor 1/N expansion of theparitition function of two-dimensional SU(N) and U(N) Yang Mills theory. Wefind a very similar structure of mixing between holomorphic andanti-holomorphic sectors as that described by Vafa for the 1/N expansion. Someof the non-perturbative terms are suggestive of D-strings wrapping the $T^2$ ofthe 2dYM but blowing up into a fuzzy geometry by the Myers effect in thedirections transverse to the $T^2$.Comment: 19 pages, 3 figures ; v2,3 -refs adde

On exponential corrections to the 1/Nexpansion in two-dimensional Yang Mills