Well, finally Ive got answers from RIM. Suddenly a whole platoon of support guys helped me out trough their CRM by mail... it seems that they work somwhere in Europe or maybe Asia... all the answers came during night. (Im in Mexico).
They advised me to use a sync cleaning utilty found here
Still after doing this I had a problem with PocketMac it wasn´t detecting my phone. The only way I madeit work was opening each applications sync options while having the phone connected... weird hugh? but it worked!! Now everything works as it should.
I know, I it sounds like voodoo magic but hope it works for you too.