A SS Subtitles Support

Hi there. I would like to know whether WDTV Live gen 3 supports .A SS subtitles. I convertedsome srt subs to .A SS using STR23ASS, muxed them to mkv with MKVMegre, checked in MPC-HC in my PC and they looked like a dream. When I played the file in the smp, the positioning, coloring and most of the aspects were gone so the subs appeared in the middle of the screen. So, does the wdtv live gen 3 support .A SS subtitles PROPERLY?

They are supported 

it might have something to do with the way the file got converted

do you have the same problem with other files?