Ive tried the split supply using 2 9v batteries but didnt have any different results.
It still worked fine untill the input voltage went under 0.8 volts.
Should it work ok without the split supply as with or without the split supply I get the same results.
If I change the voltage that powers the opamp to say 12v then when the input is under 0.8 volts it outputs around 11 volts.
I dont know whats happening.
Would it be possible for someone to draw a circuit that will input 0.1 to 1 volt and output that to 17% more? Ill build that and see what happens.
Im just about ready to give up
Thanks for your help so far.