Unable to Resume

I am having the unable to resume problem whereby I restart Limewire and it restarts a download at 0% that was previously at 94% or whatever. It has happened 3 times over the last week, I check the formum and find it has been happening for about 2 years and the problem still hasn't been fixed. I paid for the pro version and it seems I have paid for something that is at best a bit of unfinished shareware. Why can I not resume the downloads from where they left off? I end up with a bunch of duplicates of the same file at varying stages of completeness all of which I cannot resume. I am not happy, what a waste of bandwidth, time and money!