I don't really understand how cgminer works. I try to mine using cgminer + cgwatcher on a BtcGuild pool but even after 1 hour mining I don't have any accepted or share block. What I don't understand is how cgminer sync with the current blockchain data??? Blockchain data is about 11Go. Should I find blk0001.DAT file in cgminer folder or Roaming folder? Is it possible to keep miner tool (on a USB key) and keep data on the same USB key.