Dual Booting 7 and Snow Leopard on separate hard drives(laptop)

[eggs588]

Hi

 

I have some funny issues with a dual boot on my lenovo R60 (laptop). I have a Western Digital 500gb internal hard drive, with a partition for Windows 7 and another storage partition where I keep all of my files. Around a week ago, I decided to try installing snow leopard. I used iATKOS S3 V2 on a 60GB hard drive that I temporarily used instead of my 500GB HDD.

 

Fujitsu 60GB Hard Drive

 

After 3 or 4 different options I finally got it working. After messing around with it for a while I switched back to my Windows hard drive, and put the Snow Leopard hard drive into an external USB case enclosure. Windows started fine so I used EasyBCD to add a Mac OS X entry in the win 7 bootloader. When I chose it, it took me to chameleon where I could select OS X or Windows. I picked OS X and it booted, but left me with a blank gray screen. The custom sound keys actually work, (i can hear the noise) and I could move the mouse to the top left corner, click, push s(for shutdown) and push enter twice and the laptoip would actually shut down(or sleep, I'm not sure which because sleep doesn't work on the R60 as far as I know, it reboots)

 

I had this gray screen before when I was first trying to install OS X, and the solution was the intel efi string option in iAtkos. I tried changing the string in com.apple.boot.plist with Macdrive and plist editor in windows, but it didn;t do anything. Then I put in my iAtkos disk and tried reinstalling on my OS X drive.

 

Now I did something stupid..I was suddenly scared that I had accidentally installed OS X on my Windows drive, so I opened the cover while it was installing and pulled it out (I thought this wouldn't have any effect if it actually was installing on the correct drive. The computer immediately restarted (in the middle of the reinstall!) and booted into a perfectly working OS X from my external hard drive.

 

I tried putting the windows drive back in and OS X gives me the gray screen.

 

So...

Why can I only boot OS X when my Win 7 drive isn't connected???

 

Thanks

Eggs =)