iTunes no longer able to "browse covers on this computer" after replacing igdumd64.dll file.

windows 7 home premium HP dv7t-7000 i7 computer

was having issues w com surrogate crashing constantly when trying to view photos. solution was to delete and replace igdumd64.dll, which is the Intel Graphics/ DirectX something or other file.

the com surrogate crash is fixed, but now itunes says "iTunes unable to browse covers on this computer."

i know they are related.

how do i resolve?