One function works but the other doesn't. Why?

OK, I have my stamp hooked up to an MT8816 and I am able to control it with some very lengthy code but when I try to condense it, all of the pins from 8-15 go High when "TX1 = 0" in the second code section. I will try to be very descriptive below. The program that does work is this:

' {STAMP BS2SX}
' {$PBASIC 2.5}

DATA_LINE       CON 5     'Pin 38 on MT8816
CS_LINE           CON 6     'Pin 36 on MT8816
STROBE_LINE    CON 7     'Pin 18 on MT8816
RESET_LINE      CON 8     'Pin 3 on MT8816

AX0             CON 9       'Pin 5 on MT8816
AX1             CON 10     'Pin 22 on MT8816
AX2             CON 11     'Pin 23 on MT8816
AX3             CON 12     'Pin 4 on MT8816

AY0             CON 13     'Pin 24 on MT8816
AY1             CON 14     'Pin 25 on MT8816
AY2             CON 15     'Pin 2 on MT8816

OUTH = %11111111        'Makes pins 8-15 outputs
DIRH = %00000000         'Sets pins 8-15 to low

Reset:
      HIGH RESET_LINE     'Sets MT8816 Reset Line to High which closes all X to Y connections
      PAUSE 25                 'Wait 25 ms which is way longer than necessary
      LOW RESET_LINE      'Sets MT8816 Reset Line to Low and it is now ready to accept commands
      DEBUG CR, "The MT8816 was just reset..."



main:
      DO
        IF (IN0 = 0) THEN               'If button 1 is pressed, then
          GOSUB C_X0_Y0              'go to that sub
          ELSEIF (IN1 = 0) THEN      'If button 2 is pressed, then
          GOSUB D_X0_Y0              'go to that sub
          ELSEIF (IN3 = 0) THEN      'If button 3 is pressed, then
          GOSUB Reset                   'go to that sub
        ENDIF
      LOOP

C_X0_Y0:
      LOW AX0             'Sets AX0 to Low
      LOW AX1             'Sets AX1 to Low
      LOW AX2             'Sets AX2 to Low
      LOW AX3             'Sets AX3 to Low

      LOW AY0             'Sets AY0 to Low
      LOW AY1             'Sets AY1 to Low
      LOW AY2             'Sets AY2 to Low

      PAUSE 10              'Pause for grins

      HIGH DATA_LINE           'Data Line is High which means that the MT8816 is going to make a connection
      HIGH CS_LINE               'CS Line is high for something
      HIGH STROBE_LINE        'Strobe Line is High for something

      PAUSE 10               'Pause for grins

      LOW STROBE_LINE         'Strobe Line is low, thus setting the connection
      LOW CS_LINE                'CS Line is low for something
      LOW DATA_LINE             'Data Line is low for something

      DO WHILE (IN0 = 0)       'Do the loop while the button is still pressed to avoid the function being run a few times on a single button press
      PAUSE 25                      'Wait a bit
      LOOP                             'If its pressed, then loop again

      DEBUG CR, "X0 and Y0 are connected..."

      RETURN                         'Go back to Main and look for a new button press

D_X0_Y0:
      LOW AX0             'Sets AX0 to Low
      LOW AX1             'Sets AX1 to Low
      LOW AX2             'Sets AX2 to Low
      LOW AX3             'Sets AX3 to Low

      LOW AY0             'Sets AY0 to Low
      LOW AY1             'Sets AY1 to Low
      LOW AY2             'Sets AY2 to Low

      PAUSE 10              'Pause for grins

      LOW DATA_LINE            'Data Line is Low which means that the MT8816 is going to sever a connection
      HIGH CS_LINE               'CS Line is high for something
      HIGH STROBE_LINE        'Strobe Line is High for something

      PAUSE 10               'Pause for grins

      LOW STROBE_LINE         'Strobe Line is low, thus setting the connection
      LOW CS_LINE                'CS Line is low for something
      LOW DATA_LINE             'Data Line is low for something

      DO WHILE (IN1 = 0)       'Do the loop while the button is still pressed to avoid the function being run a few times on a single button press
      PAUSE 25                      'Wait a bit
      LOOP                             'If its pressed, then loop again

      DEBUG CR, "X0 and Y0 are not connected..."

      RETURN                         'Go back to Main and look for a new button press

The following code is a change to the subs that connect and disconnect X to Y connections on the MT8816

Connect_TX1:
           TX1 = 1
           LOOKUP TX1, [noparse][[/noparse] %00000000, %00000001, %00000010, %00000100 ], DIRH 'This is a connection list for Y0 to connect to X0, X1, X2 or X3
           
           PAUSE 10              'Pause for grins

           HIGH DATA_LINE            'Data Line is High which means that the MT8816 is going to make a connection
           HIGH CS_LINE                'CS Line is high for something
           HIGH STROBE_LINE         'Strobe Line is High for something

                                        'It is at this point that all of the pins from 8-15 go High. What? How is that possible? What don't I understand?
           
           PAUSE 10               'Pause for grins

           LOW STROBE_LINE         'Strobe Line is low, thus setting the connection
           LOW CS_LINE                'CS Line is low for something
           LOW DATA_LINE             'Data Line is low for something
           
           DO WHILE (IN0 = 0)       'Do the loop while the button is still pressed to avoid the function being run a few times on a single button press
           PAUSE 25                      'Wait a bit
           LOOP                             'If its pressed, then loop again

           DEBUG CR, "TX1 and RX1 are connected..."
           RETURN                         'Go back to Main and look for a new button press

Obviously the name of the function is different too but that is also changed in my "IF" statements in the "Main" program. The problem from what I can see is that in my second set of code, pins 8-15 go High when they should be low where I set "TX1 = 0". I have no idea why. Another note is that by the time the function ends, they are back to Low. Any ideas anyone? Thanks.

Jeremy