Reviews: Any Way To Keep Capitalization From Happening After A Period?

This is sort of trivial, but grammar mistakes bother me . . . when writing reviews, is there any way to keep capitalization from happening after a period?  For example, I just wrote a review where an actor's name ended in Jr., and the word after his name should not have been capitalized, but was because Jr. ends in a period. Even if I correct the word, so it does not start with a capital letter, it still will in the posted review. It's the same problem when using an ellipsis in a sentence that is not at the end of the sentence, like I did here in my first sentence.  In a review, "when" would have ended up "When".