I have been Limewire Pro for sometime on a 1 MB broadband connection...downloads were quite fast and error free...mostly music...but now since a couple of days my download speeds does not exceed more than 5KB...i dont understand what happened..anyone have a sound solution for this?...

If you have made absolutely no changes and it worked perfectly before, then it's probably your ISP limiting peer to peer related traffic. This can be because of policy change or you went past your download limit.