Lpc2000

Hi All
      I have been working with the LPC2138 for about 12 months on and 
off and have had NO problems with getting any of the peripherals 
working until now. 

I have two LPC2138's connected via SPI0 and am intending to setup one 
as a master and the other a slave that adds two serial ports to my 
master.

There are two issues:

1) With MOSI to MOSI, P1.24 (master) to SSEL0 (slave), SCLK0 to SCLK0 
and MISO floating i am seeing a mirror of what is being transmitted 
by the master on the MISO pin of the slave????? And i mean a perfect 
mirror with no time shift, with the 4 channel CRO i am using i can 
overlay one waveform ontop of the other and they match perfectly. Yes 
i have put a multimeter across the pins to check for conductivity and 
no there is no solder across the MOSI and MISO.

2) I can get the SPI interrupt the fire on both the master and the 
slave but randomly the master will just lock up (something i have 
never had happen before). Also the upon power reset the SPI wont 
start but the serial port start perfectly everytime.
My program has three basic sections
a) In main i call an init interrupt routine which initialises the SPI 
port on the master.
b) In my ISR i read the S0SPSR (clear it), write 0xA0 to S0SPCR, 
clear the interrupt by writing 0x01 to S0SPINT, clear the VicVectAddr.
c) In main i write 0x5A to S0SPDR then wait 4ms and repeat (while(1) 
loop)

If anyone can help me it would be greatly appreciated.