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Radu:
I'm not sure, but I think I may have run into similar problems with Enhancer (0.17?) at some time. (Unfortunately I cannot remember with what build of BSPlayer.)
However, then I solved by only selecting "Enable Winamp DSP plugins" and
deselecting "Enable advanced plugins support".
(Enhancer 0.17 doesn't need advanced plugin support.)
Does that perhaps work for you as well?