When the Fuze+ is switched on, the clock works correct (I adjusted correct time and date). When device is switched off, internal clock stops. When I again power on the Fuze+ time is incorrect (slowed).
I don’t know whether the clock problem is universal, but there are a number of us who have this problem. The clock on mine used to work properly, but it stopped doing so a couple of firmware revisions ago, and it has not been fixed. Namely, the clock will keep proper time as long as the Fuze+ is on, but when the Fuze is restarted after being off, it reverts back to the same time that you last set it for. I finally decided to set it for March 1, 2011 at 0:00. With that setting, I can at least keep track of how long it has been turned on. I have a decent watch, so I don’t really need it to be a timepiece. As long as the sleep timer works properly, I can live with its otherwise “flaky” clock behavior until they get around to a firmware release that fixes it.
I had prob with clock not running or running but losing abt 3 minutes between power cycles. I called Sandisk & got an RMA and was ready to ship back for warranty replacement.
As a last ditch effort, I reflashed with latest firmware (manually), then restored to factory default settings, reformatted the internal memory, set the clock and reloaded my music. Two days later; the time is correct, it stays correct and does not become incorrect after connecting/disconnecting to my linux box.
With everything working fine I am not willing to “experiment” with my Fuze but I think the methodology used to set the clock and then how you exit the Set Clock menu item determines whether you will be successful.