How can i remove my frett buzz on my Fender Stratocaster?

Okay, i've borrowed my mates stratocaster and i noticed within seconds of playing that there was alot of fret buzz from open string low E. when playing a power chord on the first fret of the string there is no buzz, yet when playing an Em chord there is so much buzz you can't here the other 2 notes being help down. on the strat model there are also ... what i would desribe as saddles, where the strings enter the trem; strings E -through to- G are all at the same height (Maximum height) and distance (Maximum Distance) from the back of the trem the other 2 looked crooked and were at different heights. i've tried moving the truss rod but it makes the neck have no bow in it and the low e automatically goes to max tension when you try to tune it and sounds tiny + it sounds like it still rubbing against the first fret wire. i have not taken it to any store in the immediate area as they are all stupidly over priced and do a poor job at customer service; so i was wondering if there was anyone that could help me fix this without directing me to the fender website; it is of no help to me. A walk through would be nice, but i'll take all the help i can get aslong as it doesn't require me forking out £30 for a new set of everything.

Thanks in advance,
Daryl.