Windows 7 Windows 7 Won't Automatically Boot From Disk

I just got an SSD, and immediately installed W7 on it. Got it all updated, backed up my other drive, and formatted the old one so it wouldn't be a boot disk. However, now Windows won't automatically boot from the SSD. I can hit the boot menu at startup and select the drive manually, but it does not show up in the arrangeable list of drives to automatically boot from. How do I make Windows automatically boot from the SSD?

Windows 7 is fully installed and updated on it; it works fine when I automatically select it, but Windows refuses to notice it unless I tell it that it is there.

Thanks.