I've playing guitar for about a year now and an ongoing problem I've been having is the intonation of the High E string going out. I use an Epiphone Les Paul Standard and after about 2 months of playing with a new batch of strings, the intonation goes out on the high E. I adjust the bridge but can't seem to get it right. The only way I know of correcting the problem is buying a new set of strings. Any suggestions on how to correct the problem.