i got the L688 update on the both 722ks in my house. now the thing works slower at almost everything now. everyone else having the slow functioning issues with the L688 update on the 722ks
Did you try a hard power reboot? Pull the plug and leave it unplugged for 1 minute then replug it in and it should operate better. I do a power cord reboot every time I get an update to clear any bugs or glitches introduced by the software update.