When Ben is watching the TV in the hotel and Sayid's name shows up in Arabic at the bottom of the screen, it's clear that the Arabic is written wrong and that his last name is misspelled.
Arabic letters are supposed to be connected together, while on the screen each letter is on it's own. The first 3 characters (starting from the right not left) is Sayid's first name they should all be connected as one, the last 4 characters are his last name and they should say Jarrah but instead say Jara. The 5th and 6th characters should be swapped around and the last character is the wrong form of the Arabic letter "H".
Also the second line under his name makes no sense at all.