media player and photo viewer corrupt

I have the pre release version and everything was working great untill one day Windows Media player Stopped working completely. W7 always scans for an answer but never finds one.

Also Photo Viewer sais it doesnt recognize file types as common as Jpegs, Tifs and almost anything I can think of.

Does anyone know where I can download these progs for W7 for reinstall or a soloution to my problem?

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