mac fail question (applications won't open, may be related to accidentally aborted software update?)
The other day, I was in the middle of a software updates download when my mac (OS X 10.4.11) shut down due to lack of battery--somehow it had come unplugged. When I restarted it, I couldn't open the software updater anymore, nor could I open iTunes, one of the programs it was updating. Also can't open Skype. Is this problem of not being able to open applications related to the mid-update crash, or is it likely something else? And whatever it is, how can I fix it?