Hi guys,
This is my first message at this forum, so try and be nice

I'm currently learning Billy Taylor's classic 'I wish I knew how it feels to be free', however, there's a couple of chords that really don't sound right, to me anyway.
Anyway here's the the third bar where the 'problem' is:

I've circled the chords in question. Just before I ramble on anyway more, I better give a bit of background info. I've only been teaching myself piano for 6 weeks and have never had a piano lesson in my life! Therefore, I little knowledge of music theory etc... Basically, what i'm saying is: if anyway can help me, try and keep it really simple.
Anyway, where the above two chords are played together they just don;t sound right. i'm playing a 'D' and a 'B' in my RH, and a 'C' and a 'Eb' in my LH. In wouldn't suprise me if the problem is related to my lack of musical knowledge and i'm just missing something obvious.
So, take a look at the score and see what you think, I am playing it right? Are the notes I mention above the correct notes? etc.... I know this is Jazz, but it really doesn't sound right.
Sorry for the long message. thanks in advance.
Matt