Do you have DEV mode on?
try clearing your dns cache...
commad prompt ipconfig /flushdns
let us know
and its the same on all three browsers, IE, FF, Chrome?
i wonder if your update got corrupted somehow... are you able to restore and repeat?
I just read your original post again, are you making custom changes to the headers, css and such, if so, then yes when you run an update on the theme it will overwrite those changes. Sorry i missed that before, i was like duh lol...
This is why we ask people to make sure with custom changes that you make notes... Sorry i did not catch that earlier..
Plugins are different...
check he following
ow_pluginfiles 777
ow_userfiles 777
ow_static 777
... ow_static/plugins 777
... ow_static/themes 777
check your cPanel error log too
Your welcome, and sorry for being alittle off today, i have a medical procedure tomorrow and im having to fast, so not only am i starving but im also very tired but i cant sleep cause i have to drink fluids all day grrrrrr.. I swear this eraser on the end of my pencil is starting to look like a cheeseburger lol..