Can't startup, I get a '?'
When I startup I get a map with a ? in it.
We thought that there was not the right software on it, took the harddisk out and put the right software on it but still we get the ? when I am starting up my iMac.
This could also be a problem with your operating system. Try booting to your system disk by holding down the c when you boot. If successful go to the second screen and select utilities--then disk repair. Run disk repair until it reports no trouble found. If unsuccessful I would format my drive and reload my OS before replacing the drive. Ralph