Thanks again Schleppy.

It still doesn't work. I killed all the applications that were running. I even uninstalled one that I suspect it could be a problem... still nothing... same error message.

I tried the *288 and verizon automatic message says it was impossible to do the update (or something like that).

If it would be a cache problem it wouldn't work with WIFI... Right?

(Thank you so much for the help so far)

Another update,

I installed the client on my wife's phone (the same Motorola Droid but with different softwares installed in it).

She found out that some song were playing. But most of them have the same problem.

So I tried to play in my phone the songs she mentioned and they played as well.

Any ideas? Why some song over the 3G play and some no but in the WIFI all of them play?

Thanks...

I am.

There are songs within the same album that this phenomena occur (some of them play others not).

I am ashamed to ask... but how exactly I submit a ticket to them?

Thanks for your help!

Thanks a lot.

If they come back to me, I will post the solution here...

Once again thanks...

If someone else has any other idea meanwhile, I would be glad to try.

Thanks hotvibes.

I figure out a solution as well.
Indeed, when you switch from WIFI to 3G I have this bug. In my case, the solution was reset my phone (in the particular case of my phone, I removed the battery - it's faster).

When it gets back, the mp3 streaming works beautifully.