Sounds like the camera could use a CLA - clean out the old lube and put in some new.
Shel > [Original Message] > From: Jon Myers > I've discovered that my LX acts up when it's cold. But > only when cold. > > What it's doing resembles the "sticky mirror" issue, > but the mirror isn't sticking to the bumper at all. So > that's not the case. Pressing the shutter release > causes the mirror to start to move, it gets a few > millimeters off the bumper and then moves very slowly > upwards while the winder complains. Works beautifully > when at room temperature though.