Nonsequitur = Idiot

A couple months ago I bought a nice, big, brand-new chainsaw because there were a bunch of trees planted in bad places around my property (threatening to fall on the house, all over the leech field, too close together in haphazard rows). I jumped the chain last week due to improper tension and after an hour or so of filing & reconditioning the drive teeth I got it put back together and it seemed to be running normally; except it was not cutting very well at all. All it would do was slowly cut a groove in the wood and start smoking like mad. I tried everything I knew: lubricating all moving parts, sharpening the teeth repeatedly, repositioning the bar, adjusting the tension, etc... all to no avail. After two days of troubleshooting I got disgusted with it and tossed it in the shed with the intention of taking it to a specialist who works on them. I dug it back out the other day with the intention of taking it to the specialist but I decided attempt troubleshooting once more. It was still doing the same thing no matter what I did and as I exasperatedly shut off the engine I noticed something odd about the chain as it came to a stop... I had put it on backwards. Why don't I ever check the most obvious things first??!!