MultiTerm Extract 2014

Hi, I'm trying to perform a bilingual term extraction from a tmx file (exported from a sdltm translation memory), but there is 0% progress on the first stage (reading file) after more than 25 minutes. It is not a big tmx (424KB). I have also tried a monolingual extraction and have tried uploading parallel rtf files, all with the same result. Does anyone have any ideas why this could be?