R help - Dec 2008 - RODBC and Microsft Visual C++ Runtime Library

Hello,
I am using RODBC and some times when I use a sqlSave I recive this message:

      Microsft Visual C++ Runtime Library
      RunTime Error!

      Program C:\Archivo de programa\R\R-2.8.0\bin\Rgui.exe

     This application  has requested the Runtime to terminate it in an
unusual way.
     Please contact the application's support tean for more information.


is it a bug? is there something wrong ?

The sqlSave is:

sqlSave(cnn, VencimientosxDia, tablename = "Copia", append = TRUE,
safer TRUE, rownames = FALSE, colnames = FALSE)

Thanks

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