Ricoja, I don't have that problem (w/ no locks on). Maybe a faulty remote? That is my only gripe (a very, very small one): That remote is chintzy feeling. Feels like it will just fall to pieces if you press the buttons too hard.
BTW, I love the player. Easy to install, easy to use software, great sound quality (although a little underpowered). I'm impressed by it and am feeling very lucky to have gotten it at such a sweet price. Plus, I was able to fit 9 medium sized songs on the 32 card, and I don't think I'm going to shuck out for a 64. Hell, just get a burner for making cds for your long trips (I think a cdrw is a really good deal when you compare it to the price of a 64 smartcard). Sure, it's twice as much but think about all you can do with it. Of course, I'm assuming you all have portable CD players, which is probably an unfair assumption.