I have the RepRap discount full graphics controller with a Rumba board but I cannot get my SD Card slot to work correctly. I'm currently running the Marlin RC (first version) and when I insert my card nothing happens. Below is the LCD / SD section of my config.h file.

//==============================LCD and SD support=============================
// @section lcd

// Define your display language below. Replace (en) with your language code and uncomment.
// en, pl, fr, de, es, ru, bg, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
// See also language.h
#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)

// Choose ONE of these 3 charsets. This has to match your hardware. Ignored for full graphic display.
// To find out what type you have - compile with (test) - upload - click to get the menu. You'll see two typical lines from the upper half of the charset.
// See also documentation/LCDLanguageFont.md
#define DISPLAY_CHARSET_HD44780_JAPAN // this is the most common hardware
//#define DISPLAY_CHARSET_HD44780_WESTERN
//#define DISPLAY_CHARSET_HD44780_CYRILLIC

//#define ULTRA_LCD //general LCD support, also 16x2
//#define DOGLCD // Support for SPI LCD 128x64 (Controller ST7565R graphic Display Family)
//#define SDSUPPORT // Enable SD Card Support in Hardware Console
// Changed behaviour! If you need SDSUPPORT uncomment it!
//#define SDSLOW // Use slower SD transfer mode (not normally needed - uncomment if you're getting volume init error)
//#define SDEXTRASLOW // Use even slower SD transfer mode (not normally needed - uncomment if you're getting volume init error)
//#define SD_CHECK_AND_RETRY // Use CRC checks and retries on the SD communication
//#define ENCODER_PULSES_PER_STEP 1 // Increase if you have a high resolution encoder
//#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
//#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
//#define ULTIPANEL //the UltiPanel as on Thingiverse
//#define SPEAKER // The sound device is a speaker - not a buzzer. A buzzer resonates with his own frequency.
//#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click
//#define LCD_FEEDBACK_FREQUENCY_HZ 1000 // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
// 0 to disable buzzer feedback. Test with M300 S<frequency Hz> P<duration ms>
// PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
// http://reprap.org/wiki/PanelOne
//#define PANEL_ONE

// The MaKr3d Makr-Panel with graphic controller and SD support
// http://reprap.org/wiki/MaKr3d_MaKrPanel
//#define MAKRPANEL

// The Panucatt Devices Viki 2.0 and mini Viki with Graphic LCD
// http://panucatt.com
// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
//#define VIKI2
//#define miniVIKI

// This is a new controller currently under development. https://github.com/eboston/Adafruit-...ic-Controller/
//
// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
//#define ELB_FULL_GRAPHIC_CONTROLLER
//#define SD_DETECT_INVERTED

// The RepRapDiscount Smart Controller (white PCB)
// http://reprap.org/wiki/RepRapDiscount_Smart_Controller
//#define REPRAP_DISCOUNT_SMART_CONTROLLER

// The GADGETS3D G3D LCD/SD Controller (blue PCB)
// http://reprap.org/wiki/RAMPS_1.3/1.4...eld_with_Panel
//#define G3D_PANEL

// The RepRapDiscount FULL GRAPHIC Smart Controller (quadratic white PCB)
// http://reprap.org/wiki/RepRapDiscoun...art_Controller
//
// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: http://code.google.com/p/u8glib/wiki/u8glib
#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

// The RepRapWorld REPRAPWORLD_KEYPAD v1.1
// http://reprapworld.com/?products_det...Path=1591_1626
//#define REPRAPWORLD_KEYPAD
//#define REPRAPWORLD_KEYPAD_MOVE_STEP 10.0 // how much should be moved when a key is pressed, eg 10.0 means 10mm per click

// The Elefu RA Board Control Panel
// http://www.elefu.com/index.php?route...&product_id=53
// REMEMBER TO INSTALL LiquidCrystal_I2C.h in your ARDUINO library folder: https://github.com/kiyoshigawa/LiquidCrystal_I2C
//#define RA_CONTROL_PANEL

// The MakerLab Mini Panel with graphic controller and SD support
// http://reprap.org/wiki/Mini_panel
//#define MINIPANEL

/**

When I tried uncommenting the SDSupport line my card shows up as "NO SD CARD" even when it is in. Not sure what im missing here.