Forza Motorsport 3 disc 2 install problems

Hi.
I have an Xbox 360 “red Box”
When I insert disc 1 ,There should be a menu selection “Install Disc 2”
I don’t get that menu choice.
I have 104 GB free on my Xbox 360 so space should not be a problem

I have both Discs one labeled Disc 1 Play Disk and Disk 2 content install disk

Any help would be appreciated

RSW

Hello All,
I have solved the problem.
I removed Forza Horizon 2 and Forsa Motorsport 2 from the HDD.
I restarted and I got the prompt to install Disc 2
Every thing is good