I was using the demo version of mikroElectroikas software but soon turned out the 2k program size is not large enough. When going to MPLAB (using C language) I ended up with a few problems was hoping someone could help me on. First this is what I was using in mikro for setting up the LCD Code ( (Unknown Language)): sbit LCD_RS at RB4_bit; sbit LCD_EN at RB5_bit; sbit LCD_D4 at RB0_bit; sbit LCD_D5 at RB1_bit; sbit LCD_D6 at RB2_bit; sbit LCD_D7 at RB3_bit; sbit LCD_RS_Direction at TRISB4_bit; sbit LCD_EN_Direction at TRISB5_bit; sbit LCD_D4_Direction at TRISB0_bit; sbit LCD_D5_Direction at TRISB1_bit; sbit LCD_D6_Direction at TRISB2_bit; sbit LCD_D7_Direction at TRISB3_bit; But MPLAB doesn't seem to like these commands. Also, even with commenting all of these references out I get the following error when building: Code ( (Unknown Language)): Error  ; . can't find 0x5C words for psect "rbss_0" in segment "BANK0" Any ideas? Thanks! edit: When I look through the Memory Usage Map, BANK0 of the Data Space section is almost completely full. As soon as I add a division or something like that it exceeds it and gives me the error. Any idea why this is occuring? How do I move to Bank1, etc.