I have a Power Mac G5 2.0 processor that i installed Leopard onto. I did not put a password in the OS during installation but now when i try to do a Mac software update i get asked for a password???????!!!!! i don"t get???!!! Is there a way around this. i can recall a time where on other occasions I booted from the install disk and seeing an option for " Password Reset". Help.... what to do ?????!!