We've all been there. It's a common problem. Beginners will tend to press down on the string a bit too much to get a clean tone cause they haven't developed callouses on the fingertips yet. So whats happening is your finger tip flesh is flattening out and touching the other strings.

If your placing your fingertip where the instructor tells you then you don't need to press down so hard. Also some guitars like the Fender Squires have narrower necks so string spacing is tighter which for larger fingers could make it a more difficult. Next time your in a guitar store try a few other models out just to see if it makes a difference.

This will all work itself out over time and performing the spider leg exercises will definately help with dexterity and mobility.

Oh and enjoy the small increments. Sometimes thats all we can really hope for but they add up over time.

Moe