Text: crown prince constantine asked king frederik ix for princess anne-marie's hand in marriage at amalienborg palace in copenhagen.

Correct capitalization: Crown Prince Constantine asked King Frederik IX for Princess Anne-Marie's hand in marriage at Amalienborg Palace in Copenhagen.

Text: expect things to go not according to plan.

Correct capitalization: Expect things to go not according to plan.

Text: in the case that your mig file doesn't open, it is highly likely that you do not have the correct software application installed on your pc to view or edit mig file extensions.

Correct capitalization: In the case that your MIG file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit MIG file extensions.

Text: a unicode-based multi-purpose software dedicated to the cataloging of cds, dvds, music cds, any hard disk folder, or other accessible media.

Correct capitalization:
A Unicode-based multi-purpose software dedicated to the cataloging of CDs, DVDs, music CDs, any hard disk folder, or other accessible media.