I have Dell Inspiron 1525; installed Ubuntu 12.04 LTS and everything seemed well. Then did a reboot and tried to get into Vista - but I get a black screen with working cursor and nothing else.
I tried Boot Repair and it said:
Boot successfully repaired.
Please write on a paper the following URL:
If you still experience boot problems, indicate this URL to: firstname.lastname@example.org or to your favorite support forum.
You can now reboot your computer.
However, I am unable to boot into Windows Vista.