Does: "C2 21.......34 found -> 06.686a5b found!" mean a valid block has been found? I have many of these but nothing appearing in my wallet.
Same issue here Win7 X64
06.686a5b is the difficulty of what has been found. In this case, you found a block of difficulty 06.686a5b in hex or ~6.32 in decimal. The network diff is 9.85 or so, however.