Use a lens hood. Develop a bit more. The type of flare you will run into will be some strenghtening of shadows by light being reflected within the lens and camera body. Many times I believe people expect that flare to only be diaphram shaped blobs such as one can get by shooting into the sun.

Enjoy your new companion. It is capable of fine results. If the flare bothers you then get a 3.5 Elmar that is a coated LTM. There are plenty available.