I usually start the morning with the player on standby, and press Tuner to listen to Radio 4 on my way to work in the morning (having listened to music with Hijack's countdown timer indoors the previous evening). Radio 4 is preset 4, on 94.5 MHz, and I never switch to any other station (at least, not for several months).

Occasionally, when the player starts up, it shows on the display that it's preset 4 on 94.5 MHz, but the audio and the RDS indicate that it's actually receiving Radio 1, which I have on preset 1. If I go up or down 0.5MHz (or select a preset, or any action that changes tuning) it gets in sync with what it's displaying and all is well.

Any ideas?