Hi, I have a macbook intel(black) it originally came with tiger, i installed leopard on it a while ago. How ever i dont like leopard i want tiger back. I lost the original grey cds that came with my macbook so i hooked it up to my imac with target disk mode. I erased the disk using disk utility. Then i installed tiger with an original copy of tiger bought in a mac store. My imac rebooted i follow the installation menu and it installed. the internal drive of my macbook booted on my imac asif it were an external drive. I rebooted into the internal drive of the imac and ejected the macbook drive. I disconnected the firewire cable and rebooted my macbook. The problem is that it wont boot properly it just goes to the white screen make the startup sound and starts flashing a folder with a questionmark in it. ive tried resetting the pram etc but it doesnt seem to work. i tried holding alt at boot up all i get is the cursor and nothing happens. i can still connect it to my imac but that it. how can i get my macbook to reboot properly again?"