DX7 - no working sounds

I have tried (useing unregistered version of Soundlib) to load sounds into my DX7, but it willl not work. The display showes the correct soundname i.e. PIANO 1, but when I play a tone it do not sound right, and the pitch is raising up and up.....

What can I do wrong?

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Are Lind
P..Box 18
N-8309 Kabelvaag
Norway
+47 760 78422

I had gloomy thoughts about this, but wait, it may not be so bad...it's important to remember that portamento and poly/mono settings are global, used for all programs at once (at least on the non-E! DX7...)So try this : go to the function menu and make sure that portamento is zero and mono/poly is poly; appropriate of course for piano.
This is a situation unique to the DX7.

If your sounds are still not right it's possible that a card edge connector is not fully re-seated. Check everything you did in the process of changing the battery. The thing I don't want to think about is, did the old battery leak? I sure hope not...good luck and let us know how it went.mn