This is what my friend has to say:
I am on a cable 756k high speed internet, router (belkin) hooked up to 3 computers including mine and my Xbox. Lately when i join a chat room in starcraft and need to download the map, it is EXTREMELY slow, but gameplay is smooth after downloading the map or already having it. I have tried porting the game, and without porting it, my house just got rewired so that internet is at optimal speed. I download torrents that run very quickly and play other more demanding games with ease. My computer have 2.9ghz 512 ram with a 9600 radeonXT far passing the requirments of starcraft. PLz help me i love playing starcraft.
no idea, sorry :(