I have just transferred my S2 and S3 to a new PC and did a complete reinstall Version 3.52.
Now, when I start the S2 the Preselector bypass is on, but the box is NOT ticked. To get back to normal, I have to click on Presel.Byp. twice. Most annoying.
This seems similar, but not identical to the problem that Otso is experiencing.
Simon