problems with extended ascii characters in filenames

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Van_Gogh__Landscape_at_Saint_RÃ©my .png

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Van_Gogh__Landscape_at_Saint_R\303\251my\ .png

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***   Failed to open file './wpclipart_src-1.7/art/Paintings/Van_Gogh/
+Van_Gogh__Landscape_at_Saint_RÃÂ©my .png': No such file or directory 
+at ./gtk2_thumbnail_viewer1 line 272.

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