I bought it used years ago, it was my first pistol and I carried it for a long time. Put a bunch of rounds through it too. It was always very reliable until it started having this issue. That's been a couple of years.
I took it down to brass tacks, with the exception of unpinning the barrel this morning. Cleaned everything up and gave it a good scrub with a couple of strategically placed drops of CLP for good measure. I am taking Mrs. Ledhed to do a little pistol training on Monday, so I will bring it along and put some rounds through it and see what happens. If that didn't clear up the problem, I'll probably get in touch with this fellow
Home Page as he seems well regarded. I'll hop on over to the Walther Forum and nose around too. My carry pistol now is a Sig P250 subcompact, that one shouldn't have trouble for a long time.