Same problem but with PD v. 7
Please tell me what version of PD are you trying to install and what version of Mac OS do you have?
PD v. 7
iMac 10.7.4
2.5 GHz Intel Core i5
4 GB 1333 MHz DDR3
Its just stuck running package scripts and load time gets longer and longer, I even let it run overnight and nothing. Tried about 5 times don't know what to do?