Dateline 3/25/07

I have a unusual problem...I can't gain any weight. I seem to be stuck around 150lbs. I am skinny and wanted to put on some lean mass so I stopped running as much and started doing weights seriously (maxing out with 2 sets for each major muscle group). I am aware that to gain lean mass, you need to gain weight in general, so I have been eating a little more, especially more protein. After about 2 weeks of this, i have noticed that I was able to lift slightly more weight (10% gains in some cases) but on the scale I noticed: no change. This is sort of frustrating...I even baked and then ate a whole cake this weekend, but to no avail. I eat healthy, but I am not at a loss for calories and spend most of my time sitting in front of a computer or a text book. I have no idea what to do...