Error Lots of errors!

[Vinoth]

i installed my new SMF RC1.0 release and i cannot log in it shows me some session error, when i log in


and i cannot install new templates, nor change any settings shows me errors.

any help appreciated!

[Vinoth]

Error during Loging!

You will have to wait about 5 seconds to login again, sorry.

Error 2

An Error Has Occurred!
Session verification failed. Please try logging out and back in again, and then try again. 

this occurs during, when i change a theme or do some actions in settings,

Notice: Undefined index: sa in /home/webhost5/public_html/forum/Sources/Themes.php on line 148

[Oldiesmann]

Please make sure all your files are up to date. That "undefined index:sa" error seems a bit strange. Try re-uploading Themes.php and any template files you may have...