Hello all. I'm new to this forum and I'm having an issue with my Macbook that I was hoping people could help with. So I took out my Macbook today and inserted a DVD into the drive. The player didn't come up nor did the cd show up as inserted, so for some reason I decided to restart the system to see if that would help. When it restarted, it made the chime noise and popped up a solid white screen. Wouldn't go any further into the boot process. Restarted, same thing. Each time, the computer makes noise like it's trying to read the cd and the harddrive fans come on, but nothing happens. I'm pretty new to Macs, so I'm not sure how to go about dealing with this. All I know is this is my work system and I'm pretty hosed if it doesn't boot... Suggestions?