New installation - 1054 Unknown column

New installation
Whatever Table Settings - Select Table - I choose I get the following

An error has occurred.
1054 Unknown column 'execPlugins' in 'field list' SQL=INSERT INTO `dnl_grids` (`typejx`,`tableName`,`showTitle`,`tableCaption`,`connection`,`execPlugins`,`shAtrib`,`paging`,`nrPages`,`default_order`,`nrRows`,`searchF`,`nrRecSelect`,`nrRecords`,`lineNr`,`showtime`,`poweredBy`,`hColor`,`sColor`,`rColor1`,`rColor2`,`rColorMO`,`PBColor`,`lineHeight`,`whereCond`,`caseSensitive`,`secOrder`) VALUES ('grid','dnl_addressbook','1','address','joomla','0','1','1','5','id|','20','display=1\noptions=1\nadvanced=0\nsubmitFirst=1\naso=default\noperator=1\n','1','1','1','1','1','FFFFFF','EEEEEE','FFFFFF','EEEEEE','F5F5BA','F7F7F7','','','0','0||')
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These are columns selected by the system so where is the error?

Thanks
Lion

Using Joomla 3.1

This was a first time install, first time user.

Same as Joomla

Thanks for the suggestion, will do that in the morning. 22:30 here...

Will inform if successful. Thanks

I have now tried uninstalling and reinstalling - same issue...

Unfortunately I do not know where to find the tables, so I have not been able to delete as suggested.

Can you tell me where to locate them please?