Hi ejaedesign,
Pascal and I uncovered the problem. First, your server offset (under Localization) is oddly set to 138, so you probably want to check on that. Ideally, you want to be able to have that set to 0 and keep your server time set correctly.
What Pascal discovered was that if we set $config[‘cp_session_ttl’] in your config.php file to a high number (so that the session doesn’t expire for a long time), we could login to all browsers just fine. So it appears that Webkit-based browsers (this login failure behavior exhibits in both Chrome and Safari) were considering your session already expired.
I’d recommend checking with your server administrator to see if your server time is set correctly. Once it is, do you still experience issues with logging in with Chrome/Safari?