Hi All
i have being experiencing this weird problem with my circuit and for the life of me i just cant get my head round it.
i have a simple potential divider circuit like this

5V|---------/\/\/\/\------/\/\/\/\------GND
10K X 20K pot

i am trying to get 2.53V so when i power up the circuit and vary the pot i get the
2.51v when i check it with a voltmeter
Now here comes the problem , if i take the probe of the volmeter off from point X and put it back to the same point x the voltage drops to 2.34v
and i have to adjust it up again with the pot .
but again if i disconnect and reconnect the voltage drops again.
i havedone this about 20 times is there something weird going on here ?

Isaac