Ever since it seems like I updated to 10.5.3 it seems my MBP freezes within seconds of being on battery power. The whole desktop freezes up and the rainbow balloon starts spinning. It usually happens also when a webpage is loading in firefox. Could that be the problem or is it something else? It seems that if i run the mouse across the dock once or twice then it freezes up completely and the dock is froze up in the zoom. Any ideas?