galaxy s home button wake up

[evereti]

Hi

I have two galaxy s mobiles. On one I can wake it up by pressing the home key but not on the other.

I remember I had to do something to thefirst phone to make this work but cannot remember what I did. Either I found the fix on these forums or it happened when I upgraded to Gingerbread.....???

Now I need this feature on the other phone.

Can anyone help this poor old forgetful droider.

Thanks