I have noticed my doing this too. I have a 5-speed. I pull straight into my parking space at work and into my garage at home. I find that when I start, then shift to reverse, and back out of my spot, everything is fine. But when I shift into 1st, and then try to go, I tend to stall. My co-workers get a chuckle out of it. You would think that after driving manual trannys for the last 25 years, I would know how to let the clutch out
However, now I have found that it only seems to happen when the engine is completely cold. Once I take off and drive somewhere (even a short distance), then I can't re-create it. It simply goes away. I'm going to start letting it warm up a little bit longer and see if that helps.