SSD and Boot Manager Missing problem

Well...Don't know what happens. A couple days ago, I installed window 7 several time and they all worked fine. However, today, when I tried to re-install window 7(putting the disc into the DVD-Rom, set it to boot CD-ROM in the bios). As soon as the message prompted, stating that "press any key to boot from CD..." When I tried, it just wouldn't work and it just directly went into the window login screen and ran normally. And no matter what the sequence or order I set to run the CD from the DVD-drive, it just would not work.

Then I took that out, put another IDE drive, and then it just installed fine. With OS installed on the IDE drive, I plugged my SSD, which the window disc won't boot and load files on, and formatted it. But now I took out the IDE drive, and put the darn SSD back and did the clean installation, and the computer just gave me a message about Boot manager is missing and press ctrl + delete + alt to restart. I would not be able to do that because it just stuck there.

So I am just wondering if there is a way to fix this.
I am pretty sure the SSD works fine. If not window would not recognize it when it plugged it in and reformatted it.