Cannot see optimization results

[NinjaTrader_Bertrand]

Unfortunately if this still comes up after the repair had been performed, then you would need to rename the database to be able to use a completely fresh file.

You would do this by closing NT7 down and going to Documents\NinjaTrader 7\db and renaming the present NinjaTrader.sdf to for example NinjaTraderOld.sdf - then on next restart NT7 would use a fresh DB file.

[ch9090]

ok, and then do I need to recreate symbol list, re-import daily data, etc.?

[NinjaTrader_Matthew]

The database file does not contain chart data so you should not need to re-import this information, however it will require that you recreate any custom list or symbols that you have have added.