SFR paging problem

I am having quite a problem using a silabs 8051F120 micro.

void DAC_Init()
{
    SFRPAGE   = DAC0_PAGE;
    DAC0CN    = 0x84;
    SFRPAGE   = DAC1_PAGE;
    DAC1CN    = 0x00;
}

As can be seen above I am using two DAC's one of which on SFR page '0' and the other on SFR page '1'. I am working on a live system using the silabs debug adapter and running Keil version 9.05.
When I write to DAC0 (i.e. DAC0H) it seems that it writes to both DAC0H as well as DAC1H, furthermore when I write to DAC1H nothing happens.

I understand that DAC0 uses sfr page '0' and that DAC1 uses sfr page '1'

        if((current_speed + acceleration) <= max_speed)
                {
                current_speed += acceleration;
                SFRPAGE = DAC1_PAGE;
                DAC1L = 0;
                SFRPAGE = DAC1_PAGE;
                DAC1H = current_speed;
                SFRPAGE = LEGACY_PAGE;
                if(current_speed == max_speed)
                        {
                        return(1);
                        }
                }


        if((current_speed_2 + acceleration_2) <= max_speed_2)
                {
                current_speed_2 += acceleration_2;
                DAC0L = 0;
                DAC0H = current_speed_2;
                if(current_speed_2 == max_speed_2)
                        {
                        return(1);
                        }
                }

Above is a snippet of the code, the top part will not work for some reason. While "current_speed" changes it does not write into DAC1H.

#define DAC0_PAGE         0x00    /* DAC 0 */
#define DAC1_PAGE         0x01    /* DAC 1 */

Any help is appeciated

Regrads
John Garrelts