WordPress MU

my blog has been running fine for a few days now. i havent changed nay of the code. i was exploring the 'backend' options, testing them out on my testblog. i logged out. when i logged into my test blog, i still saw my administrator's menu bar, and my administrator name along the top. i signed out again and attempted to login as Admin. no good. it took me back to login screen. i tried it in IE7, no problems until logged out. now i cant get back in with IE either. i've rebooted, cleared cookies, etc. i've scoured the forums and googled my butt off, but i'm not finding a solution. what do i need to do to regain access?

and the error you get would be...?

ok, so i'e gotten into my site with Opera. but my error log looks like:
PHP Parse error: syntax error, unexpected T_ENDIF in /home....bloggers/wp-content/themes/default/comments.php on line 107
14:37:32] PHP Parse error: syntax error, unexpected T_ENDIF in /home...bloggers/wp-content/themes/default/archive.php on line 69

i'm seeing these errors repeated dozens of times.

i get no error with the login redirect loop. it simple sends me back to the login page - http://realsportsbloggers.com/wp-login.php?redirect_to=%2Fwp-admin%2Fprofile.php.

i've seen this error all over the forums, but there doesnt seem to be a consistent way to fix it.

2 more errors:
Warning: array_keys() [function.array-keys]: The first argument should be an array in /home/...bloggers/wp-admin/admin-functions.php on line 1363

Warning: Invalid argument supplied for foreach() in /home/...bloggers/wp-admin/admin-functions.php on line 1363

What are the particulars of your server/hosting account?

OS, Web Server software, is mod_rewrite enabled, safe_mode off, FollowSymlinks enabled, etc...

"i was exploring the 'backend' options, testing them out on my testblog."

Oh, I should ask a couple more things: can you remember what you were testing (permalinks etc..) and did you try any plugins?

i'll try to answer you questions w/o sounding too ignorant.

OS - XP Pro
Web Server software - Apache
mod_rewrite enabled - unsure. i did not enable it.
safe_mode - same as above. i never changed this option.
followsymlinks - unchanged from default

i added a number of themes: menuadvance21; online_users, plugman, themeswitcher.

i've uninstalled all the plugins - though they all worked for everyone else.

i've seen a number of posts with scripts i could add and lines i could uncomment. but the lines were already uncommented when i checked and i'm not comfortable throwing scripts around that might affect the people using my site.

this has been resolved. it was a cookie issue. hanks for all the help. DemonC

same problem. any chance you could clue us in as to how you fixed it?

Clearing all the cookies and cache maybe?

same problem guys and did every thing in the forum, still got the problem and can not log in to as admin!!!

i knew something was screwy when i could login with opera and IE but not with firefox. i chatted with support and they hinted it was a WPMU issue. i cleared the cache, all cookie, etc. the problem with my host was that once i got stuck in the endless loop, i was locked out of my account for an hour or so. i had to login to my host and kill all processes. cleared private data in FF and i was good to go.

i also stopped using the login form. i used the homelandstupidity hack to put my login on the front page of my site. i havent had many issues since. i did get login problems when i used wp-cache. if youre gonna be rapidly logging in and out of your blog under different usernames - WP-Cache will choke get you. once i got ride of it, i'm having no more issues.

cookies, cache and server was allright!! the problem is something else that I thins is about the software itself. I even tried to change password from PHPmyadmin (as it is sugested in forum) but have no success.

Hi,
I have made a stupid mistake I think!!!
As I remembered, I was tring to prevent spamers from being registered and somehow I registered a blog for my self to test it!!! however the system accepted my new detail as for ADMIN, it was the problem I think.

Now every thing is working and nothing is wrong then.

Thank you for everyone's advise and help. I hope this note help people who have the same problem after registering a new blog for themeselves in their site.