In 10.0.4 I seem to have lost the ability to search a selection. If I select a block of text and open the search window, ‘In the selection only’ is greyed out and I can’t select it.
I don’t know if it is a new functionality in 10.0.4 but when you uncheck the ‘Search All Open Documents’ checkbox, it will enable the ‘In the Selection Only’ checkbox again.