Theme weird ,text begin large and sidebar going below

Hi…everyone,i want to ask something,sorry my english was not good enough.
I have some problem with my theme,would anyone help me….
(on my web screen)Why the text geting large,and shared out my page and begin shifted my sidebar to bottom down,(3sidebar)
10mp-cameraphone.com(if you dont mind,take look at this)
All i want to ask,What way to fix it…..?
I was try to remove my wp and install back,but didn’t help
I was try going to cpanel but still doesn’t make change
Ooops sorry,Before
I have try to erase date post,posted by admin,and it work….
Then I try to erase recent comment on header.php and it work too,
I dont know what php is but I just try it copy and paste.Then i shut down my computer that day….
But when i start my computer next tomorrow day,then this problem is show up…..please help me