You must have a 32-bit connection to the Internet. If you play other games on the Internet, you'll probably have no trouble with StarCraft. 2. If your connection is too slow, your game will be jumpy and unreliable. Latency is a major factor in online gaming. In simple terms, latency is a measure of how long it takes your computer to communicate with the host computer that's running the game.
Low latency is good, because it means the two computers communicate quickly.
High latency is bad, because it means there's a significant delay between the events happening on the host computer and what you're actually seeing on your screen. Once in Battle.net chat room, the latency bar next to your name shows your latency to Battle.net. In the list of games to join, your latency bar shows your latency to each game, which may be different than your latency to Battle.net. Short green bars mean you have very little latency. Longer yellow or red bars mean you've got significant latency.