Return of Reckoning

I get the following error message after logging in; the load in screen appears, then vanishes after several seconds. I saw this error message appear once, but it doesn't seem to happen with every time I try:


Data.myp:
System.Exception: You need to stop application currently using the following file: data.myp
at MYPHandler.MYPHandler.WriteFileToArchive(FileInArchive archFile, MemoryStream MS)
at MYPHandler.MYPHandler.ReplaceFile(FileInArchive archFile, FileStream newFile)
at RoRLauncher.Client.UpdateWarData()


Any suggestions? A friend suggested that my data.myp file might still be read only, but it wasn't.

Got this message too sometime, but i can still play, so i don't really pay attention about.

Having the same thing to.
Did you get it to work if so how??