desperados crash at beginning with crashxxx.dat

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hi,
I've french version of desperados.
when i launch it all is ok until first image of the first scene (loading is OK).
i see 1 image of 1 scene and then i return under windows with a crash000.dat in desperados\game\
i've updated DX, all drivers, I've k6 300Mhz and
win2k pro (=nt5).
does anyone have the same pb? and the solution??
thank in advance!