Hey i have a gibson epiphone special model, and it stays in tune very well in standard E, but anytime i tune down to standard D or other tunings it just won't stay in tune very long. is it the guitar or something i am not doing (probably my fault)?
Depend swhat bridge you have sometimes and strings you have on it, and how hard you play, try 10's and a carbon bridge
I use 11's (ernie ball power slinkys). I have no idea what type of bridge it has , I don't know much about that kind of stuff. This is my first guitar, and I haven't touched anything other than the strings. The action is set fairly low.

The funny thing is that it actually seems to stay in tune better tuned to C or even B tuning than it does D... does that make ANY sense???