Diseman15,

Welcome to the forum!

Here is the latest firmware update for you LN52A750 (US Version).
http://www.samsung.com/us/support/download/supportDown.do?group=televisions&type=televisions&subtype=lcdtv&model_nm=LN52A750R1F&language=&cate_type=all&dType=D&mType=FM&vType=L&prd_ia_cd=02010100&disp_nm=LN52A750

There are also instructions at that link, and it will walk you through the process. If you haven't ever updated the firmware, the latest one will have all the updates from the prior ones.

Let me know if you have any questions.

--HDTech