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Developer Console Not Displaying Executable Logs
Here's a screenshot of what i see in developer console, it's missing executable logs and I don't see the execution logs like in this link http://www.salesforce.com/us/developer/docs/apex_workbook/Content/apex1_2.htm
You should be able to get the logs by unchecking the 'Show My Current Logs Only' under the Debug tag.
https://success.salesforce.com/issues_view?id=a1p30000000T0DsAAK