Blank page in WP Admin

have you tried:

-deactivating ALL plugins (yes, all) temporarily to narrow down the problem. If the problem goes away, re-activate them individually (one-by-one) to find the problematic plugin(s). If you can’t get into your admin dashboard, try resetting the plugins folder by FTP or phpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems (because the hooks remain unless plugins completely removed or some plugins stick around in cached files. So by renaming the folder, you break them and force them inactive). If applicible, also remember to deactivate any plugins in the mu-plugins folder. The easiest way is to rename that folder to mu-plugins-old

– To rule out any theme-specific issue, try switching to the unedited default twenty twelve theme for a moment using the WP dashboard. If you don’t have access to your admin area, you can switch to the default theme by renaming your current theme’s folder in wp-content/themes via FTP or SFTP or whatever file management application your host provides.

I don’t have any plugin on website, I install new(fresh) wordpress on my domain.

what theme are you using?

I use Resportsive from ThemeForest. But theme works with WordPress 3.5

I get blank page in ADMIN, not in Front theme..

Resportsive theme is not listed in the WP free theme directory.

So, you may want to contact your theme’s vendor for support.

t-p, I have new updates for this theme, and works with WordPress 3.5

You don’t understand my problem, please read my first post. :/

EDIT:

I fix my problem, I looked in my functions.php and found empty spaces at the top and bottom of my code. These spaces at the top or bottom of the functions.php file kill the admin dashboard.

Glad you got it sorted out.:)