Serial Communication Problem

Hi all. I am using two Nordic boards to communicate between two PCs using the serial ports. The program I have written works fine if I am using Hyper Terminal to input the characters one at a time. However, my main goal was to be able to send complete strings wirelessly from one PC to another and this is where the problem is. If I try sending a string, some of the characters go missing and never arrive at the receiver. I have included my code below:

 #include <Nordic\reg24e1.h>

struct RFConfig
{
    unsigned char n;
    unsigned char buf[15];
};

typedef struct RFConfig RFConfig;

#define ADDR_INDEX  8   // Index to address bytes in RFConfig.buf
#define ADDR_COUNT  4   // Number of address bytes

const RFConfig tconf =  //configures the 16 tx bits             //tconf rconf
{                                                                                                               // 0x04  0x05 - 2402MHz Channel
    15,                                                                                                 // 0x76  0x77 - 2459Mhz Channel
    0x08, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0xaa, 0xbb, 0x12, 0x34, 0x83, 0x6F, 0x76
};

const RFConfig rconf =
{
    15,
    0x08, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0xaa, 0xbb, 0x12, 0x34, 0x83, 0x6F, 0x05
};

volatile unsigned char rxbyte, rxcount,txcount, txbyte,check;

void Delay100us(volatile unsigned char n)
{
    unsigned char i;
    while(n--)
        for(i=0;i<35;i++)
            ;
}
void Init(void)
{
    P0_ALT = 0x06;                              // Select alternate functions on pins P0.1 and P0.2
        P0_DIR= 0x42;                                   // P0.1 input, rest is output
    PWR_UP = 1;                     // Turn on Radio
    Delay100us(30);                 // Wait > 3ms
    SPICLK = 0;                     // Max SPI clock (XTAL/8)
    SPI_CTRL = 0x02;                // Connect internal SPI controller to Radio

}
void InitRS(void)
{
        TH1 = 230;                                      // 9600@16MHz (when T1M=1 and SMOD=1) (ref page 95 of Datasheet)
        CKCON |= 0x10;                              // T1M=1 (/4 timer clock)
    PCON = 0x80;                                // SMOD=1 (double baud rate)
    SCON = 0x77;                        // Serial mode1, enable receiver(1010010)
        TMOD = 0x20;                                    // Timer1 8bit auto reload (Page 84 of Datasheet
    TCON = 0x40;                                // Start timer1 (01000000) (Page 85 of Datasheet)

}

void PutChar(char c)//puts a char on the serial port
{
        while (!TI)
        ;
        TI = 0;
        SBUF = c;
}

unsigned char SpiReadWrite(unsigned char b)     //(wirelessly) transmits char b
{
    EXIF &= ~0x20;                  // Clear SPI interrupt
    SPI_DATA = b;                   // Move byte to send to SPI data register
    while((EXIF & 0x20) == 0x00)    // Wait until SPI hs finished transmitting
        ;
    return SPI_DATA;
}
void TransmitPacket(unsigned char b)
{
    unsigned char i;
    CE = 1;                                                     //chip enabled (Activate TX mode)
    Delay100us(0);
    for(i=0;i<ADDR_COUNT;i++)
        SpiReadWrite(tconf.buf[ADDR_INDEX+i]);
    SpiReadWrite(b);                            //transmit
    CE = 0;                                                     //chip disabled (disable TX mode)
    Delay100us(3);                  // Wait ~300us
}
void Transmitter(unsigned char c)
{
    unsigned char b;

    CS = 1;
    Delay100us(0);
    for(b=0;b<tconf.n;b++)
    {
        SpiReadWrite(tconf.buf[b]);
    }
    CS = 0;
    TransmitPacket(c);          // Transmit data

}

void Receiver(void)
{
    unsigned char b;
    CS = 1;
    Delay100us(0);
    for(b=0;b<rconf.n;b++)
    {
        SpiReadWrite(rconf.buf[b]);
    }
    CS = 0;
    CE = 1;
        Delay100us(100);
        {
        if (rxcount > 0)


        {
            EX4 = 0;    //disable DR1 interupt
            b = rxbyte; //place recieved data into b
            rxcount = 0;
                        PutChar(b);
            EX4 = 1;    //enable DR1 interupt
        }
        }

        CE = 0;
}

void drirq(void) interrupt 10
{
    EXIF &= ~0x40;                          // Clear DR1 interrupt
    rxbyte = SpiReadWrite(0);
    rxcount = 1;
}


void main(void)
{
        unsigned char RxChar;
        unsigned char TxChar;
        Init();
        InitRS();
        rxcount = 0;
        EX4 = 1;                // Enable DR1 interrupt
        EA = 1;                 // Global interrupt enable
        for (;;)
                {

                                if (RI)
                                {
                                TxChar = SBUF;
                                Transmitter(TxChar);
                                RI=0;
                                }
                Receiver();
                }


}

I think the problem is due to the 10ms delay I have placed in the receiver. However, if I take this delay out, the receiver never works.

The problem could could possibly be somewhere else but I am not sure.

I appreciate any help.

- Thanks.