MySqlDataReader.Read() throws ArgumentOutOfRangeException

MySqlDataReader.Read() throws ArgumentOutOfRangeException

I'm working with mysql .net connector 6.4.4 at win7 x64 platform. While
reading data from MySqlDataReader Object, it throws exception after 18th
row. But in another application I could take 40 rows without errors.
The error is just here:
MySqlDataReader.Read()
Any helps would be very appreciated.
Exception details:
System.ArgumentOutOfRangeException was unhandled
Message=Non-negative number required.
Parameter name: count
Source=mscorlib
ParamName=count
StackTrace:
at System.IO.MemoryStream.Read(Byte[] buffer, Int32 offset, Int32
count)
at MySql.Data.MySqlClient.MySqlPacket.Read(Byte[] byteBuffer, Int32
offset, Int32 count)
at MySql.Data.MySqlClient.MySqlPacket.ReadString(Int64 length)
at
MySql.Data.Types.MySqlString.MySql.Data.Types.IMySqlValue.ReadValue(MySqlPacket
packet, Int64 length, Boolean nullVal)
at MySql.Data.MySqlClient.NativeDriver.ReadColumnValue(Int32 index,
MySqlField field, IMySqlValue valObject)
at MySql.Data.MySqlClient.Driver.ReadColumnValue(Int32 index,
MySqlField field, IMySqlValue value)
at MySql.Data.MySqlClient.ResultSet.ReadColumnData(Boolean
outputParms)
at MySql.Data.MySqlClient.ResultSet.NextRow(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlDataReader.Read()
at VeriTasima.Form1..ctor() in
E:\Projeler\VeriTasima\VeriTasima\Form1.cs:line 42
at VeriTasima.Program.Main() in
E:\Projeler\VeriTasima\VeriTasima\Program.cs:line 18
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly,
String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: