How do I get to normal screen from blue screen on iMac with snow leopard operating system

Question

My iMac boots w white screen and then goes to a blue screen with no icons. I have snow leopard as operating system. I have held command key and r but can't get the repair menu. I have unplugged and tried to reboot. I have checked plugs for keyboard and mouse. Tried to reboot w snow leopard disk. Didn't work. Now can't get disk to eject. System is working because can still use wireless. Any ideas?

Answer 1

Hello, CMD+r only works in Lion/10.7 & up.
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.