Unaligned TinyMCE

I just found my Blog  tinyMCE unaligned in Internet Explorer. It looks good in Firefox. I have made no changes to it. Any ideas how to resolve this?

See image:

IE is know very well here about not displaying our D sites, been discussed since I've been a member.

All my sites look different under all browsers, IE, FireFox, Chrome, Safari, iPad, and more.

It's very frustrating but not much to do about it.

what i.e version?

 can you really fix alignments by version? that would be great!

 just asking since i don't have this issue in i.e 8 so if he is using i.e8 then it's something on his end.
But yes you can use different CSS files for different browser types. You modify each css file for a specific browser that way your site will look the same in all browser, well not all but the ones you made the changes for.

Thanks guys. I have Internet Explorer 9.0.8. However,  it was working a few days ago

 have you cleared your cache on IE?

Yes i did clear cache, even manually on cpanel

 He mean cache of your IE browser.

btw you are not viewing it in compatibility mode. right?  

 compatibility view change the document view settings of IE 8 or 9 to IE 7 and IE 7 is not a supported one, i think