I thought I had this figured out, famous last words! Returning to a project after being side tracked for six months I find that the @sleep command was never working. 12F683 set up with GP2 ext interrupt to wake from sleep. Test code for @sleep instruction uses LED to monitor sleep state. MCLR is set to off. There is a line in the data sheet that says that if Watchdog Timer is enabled, MCLR pin must be at a logic high, I am turning off WDT before @sleep. I can’t find the problem. Comments please…

Code:
@ DEVICE PIC12F683,MCLR_OFF,WDT_ON,BOD_OFF
@ DEVICE PWRT_ON,FCMEN_OFF,IESO_OFF,PROTECT_OFF
OSCCON=%1110000    
Define OSC 8
     VRCON  =  0         
     ADCON0 =  0         
     OPTION_REG = %01000000 ;rising edge interrupt
     ANSEL  =  0    		;digital all
     CMCON0 =  7
     INTCON =  %10010000    ;GlE set, INTE set, INTF clr
     GPIO   =  0   
     TRISIO =  %00001100	;GPIO.2 input for external interrupt     
;-------- Variables & Constants ------------------------------------------------     
      Avar    VAR BYTE        ;general variable
;     Inerrupt on GPIO.2     
      Blink   var GPIO.4
      TX      var GPIO.5   
;-------- Program --------------------------------------------------------------               
Main:             
    for Avar=1 to 5
    HIGH    blink  
    pause   40
    low     blink
    pause   100
    next Avar               
Downtime:
    WDTCON=0     ;Watchdog timmer off   
@sleep           ;Sleep in low power state until interrupted 
@nop                    
    INTCON.4 = 0     ;clear external interrupt flag bit
    Serout2 tx, 84, [" We have a wake up from sleep or it never went to sleep",13,10,13,10]
    for Avar=1 to 5 
    HIGH    blink  
    pause   50
    low     blink
    pause   2000
    next Avar                 
    goto main                
    end