Return of Reckoning

At first I had the mythloginserviceconfig error issue and after I went through the steps in the other thread to fix and tried running the launcher I got this error pop-up instead. I have no idea what this means. Hope somone can help with this.

Data.myp:
System.InvalidOperationException: Category does not exist.
at System.Diagnostics.PerformanceCounterLib.CounterExists(String machine, String category, String counter)
at System.Diagnostics.PerformanceCounter.InitializeImpl()
at System.Diagnostics.PerformanceCounter..ctor(String categoryName, String counterName, String instanceName, Boolean readOnly)
at System.Diagnostics.PerformanceCounter..ctor(String categoryName, String counterName, String instanceName)
at MYPHandler.MYPHandler..ctor(String filename, del_FileTableEventHandler eventHandler_FileTable, del_FileEventHandler eventHandler_Extraction, HashDictionary hashDic)
at RoRLauncher.Client.UpdateWarData()

You need to rebuild performance counters. How to manually rebuild performance counters:

1- Go to start, and type in the search box "cmd". Right click cmd, and run as administrator.
2- Type in the command console, "cd c:\windows\system32", and hit enter.
3- Then type "lodctr /r", and hit enter.

It will take a few seconds to perform the command.Performance counters should be rebuilt. Try starting the game again.

If that does not work, type this instead.