I have created a few surveys and verified the answers are in the survey db. When I go to 'Display Responses' the view there is blank. I'm assuming its just a sql query of the table here, so for good measure I can confirm I'm able to list and view token entries just fine.

I'm using MS SQL Server 2008r2,
limesurvey 2.06+ on ubuntu server.
Apache/2.4.7 (Ubuntu)
PHP 5.5.9-1ubuntu4.11 (cli)

it could be a database collation issue .

there might be a collation conflict between the token column in tokens table and the one in responses table.

Do you have any info on how to diagnose and resolve it?

I went ahead and right clicked each nvarchar column and looked at the properties. I then manually changed the token column's collation in the tokens table to match all the others.

And the result? Fixed or not fixed?

Sorry, yes it is fixed now.

just to confirm ....

can you please tell which collation you are using for your database ??

do you face same issue with each survey you create ??

sorry for the late response. American holiday weekend.
My db uses SQL_Latin1_General_CP1_CI_AS collation
The issue does in fact manifest on all surveys. It seems the survey token table, token column collation defaults to SQL_Latin1_General_CP1_CS_AS causing the mismatch. All other nvarchar columns have the correct collation.

Exactly same issue .... I am using 2.6+ build 150629, SQL server 2012
I am not sure if this problem has been resolved in a later release