I recently upgraded to a 4mb line, websites are loading much faster and its great, Speed test shows about 3.45 download speed, however when i download anything else I only get speed of up to 42KB/sec, which was about what I was getting on my 512 line. OH and Telkom is my ISP.
I've tried downloading from several different sites, such as download.com or downloading from youtube, just basic things like utilities etc. no torrents, newsservers or the likes of rapidshare.