Before I can enter my battlenet password to fully log onto Starcraft II, my computer just closes. Does anyone here face the same problem? i have tried reinstalling it for 3 times and it is still the same. Last night im still on bnet playing with my friends. My Specs , imac 27" core 1.5 (2.8Ghz), my graphic card is ATI Radeon HD 5750 ram is 16G Thanks for taking your time to read this.