[gabri3l]

There IS a bug in Olly's attach routine. I had a problem awhile back. The issue is that basically you can only attach with Olly once per session.
This means run your prog... attach... do whatever... Press RUN and it works... NOW if you do-not close Olly and try and attach to something else. Your threads will be suspended with no hope of resuming.
Instead you need to close Olly after attaching once to a program. And re-open it to attach correctly again.
I do not know if this will solve your problem since it sounds a little different than mine. But you can always give it a try. :/