Problem at UART MSP430G2553 BaudRate

Hello fellows,

I'm trying to communicate my launchpad with my serial port PC with HyperTerminal.

Here is what's happening:

Using the example code I can get communication when I select the following settings:

HYPERTERMINAL
@9600 8bits, non-parity, 1stpbit. Flow=none.

Success when set ACLK (UCA0CTL1 |= UCSSEL_1) and UCA0BR0 = 0x03.

But when I try with SMCLK (UCA0TL1 |= UCSSEL_2) and UCA0BR0 = 6 or 104 (as shown on pdf), I've got wrong characters at hyperterminal. Doesn't match with keyboard.

The point is: I NEED to use 38400bps. And with ACLK at 32k, the fastest BR is 9600. So using BR @38400, I've got the same wrong characters.

What is the problem, anybody?

Here is the code:

#include  "msp430g2553.h"

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P1DIR = 0xFF;                             // All P1.x outputs
  P1OUT = 0;                                // All P1.x reset
  P2DIR = 0xFF;                             // All P2.x outputs
  P2OUT = 0;                                // All P2.x reset
  P1SEL = BIT1 + BIT2 ;                     // P1.1 = RXD, P1.2=TXD
  P1SEL2= BIT1 + BIT2 ;                     // P1.1 = RXD, P1.2=TXD
  P3DIR = 0xFF;                             // All P3.x outputs
  P3OUT = 0;                                // All P3.x reset  
  UCA0CTL1 |= UCSSEL_2;                     // CLK = SMCLK
  UCA0BR0 = 26;                           // 1MHz/38400
  UCA0BR1 = 0x00;                           //
  UCA0MCTL = UCBRS1 + UCBRS0;               // Modulation UCBRSx = 3
  UCA0CTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
  IE2 |= UCA0RXIE;                          // Enable USCI_A0 RX interrupt

  __bis_SR_register(LPM3_bits + GIE);       // Enter LPM3, interrupts enabled
}

// Echo back RXed character, confirm TX buffer is ready first
#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR(void)
{
  while (!(IFG2&UCA0TXIFG));                 // USCI_A0 TX buffer ready?
  UCA0TXBUF = UCA0RXBUF;                     // TX -> RXed character
}

Thanks everybody!
Any help can be helpful!
Regards