Both are apparently easier than clicking on the icon with a checkmark under "ABC" to the left of the "Font Size" box.
If you want to improve play slow games OTB and a few online games if you have the time and patience ("long chess" with TLs from 1-14 days per move available here). Don't expect to improve as much (if at all) if you mainly (or exclusively) play blitz and bullet games. These blogs might be helpful to you:
http://www.chess.com/blog/NimzoRoy/chess-opening-principles
http://www.chess.com/blog/NimzoRoy/endgame-faqs
http://www.chess.com/blog/NimzoRoy/beginner-chess-book-recommendations
is playing quick chess easyer to play other than long chess in witch you can play for days