Hiya, if your learning on an Electric guitar, you might not realize that the string lengths have to be adjusted, if this is not "set up' properly the physics of the guitar will not be correct and will never sound nice:
To set it you up will need a 'plug in' guitar tuner preferably with a needle display - here's what to do:-

Tune the bottom E string to E with the needle in the middle, then on the same string press on the twelth fret[ a higher E} - if the needle is not in the middle the string will have to shortened or lengthened by turning the adjusting screw on the back of the bridge, then tune to open E again and repeat the process - when the Open E and the Twelth fret E are both bringing the needle to the middle the string length is correct.
Repeat this process for the rest of the strings - As a general rule the Bottom[Bass} E is the longest string and the top E is the shortest - When set up correctly your Guitar will literally 'Sing' - Happy Playing.Graham
[email]Gray.F@blueyonder.co.uk[/email]