I just got Parallels and am having trouble installing on my 512 K Memory MacBook. I am using Tiger OS. I have tried to run Disk Utility and repairing disk permissions to no avail. I get as far as the installation part and can load about 9 % of the program and then it crashes. I have tried to re-open, and re-install and nothing happens. This only happens on the MacBook. It installs fine on my MacMini. Any ideas or suggestions?