I have several, possibly related, problems with mma10. Here are some:
1) If I type a centered equation such as xa;b in which the "a;b" is a subscript, the whole subscript vanishes as soon as I type the "b". If I delete the "b", I see xa; . This is a real problem with notes on the covariant derivative.
2) If I highlight a word in a text cell and type Alt+rxr, all the text in the cell turns red. If, instead, I type Alt+rx, and then use the mouse to click on "Red" in the dropdown, it works fine.
3) If I highlight a cell bracket and type Alt+cpo, which should toggle the cell open/closed, it closes all cells of that type in all open notebooks. If, on the other hand, I type Alt+cp, and then use the mouse to click on Open, all behaves as it should.
These Front End problems are serious and seriously annoying. Sadly, it means I have to drop back to Mathematica 9.
Anyone else have these problems?
Kevin