The recent 1.6 update aids (read: doesn't fix) that problem. We are looking into a different retarget algorithm to alleviate the issue or a modification to Kimoto Gravity Well that will alliviate the issue. Currently we are proforming research on both kimoto gravity well and these 'Time Warp/Travel' exploits.

Also, 1.6 is out!

Sorry for the delay, but it's here! Enjoy the new features and be sure to inform me of any problems you may have. This update is mandatory.

We'd also like opinions of modifying the Proof-of-Work algorithms in FoxCoin in light of the recent Scrypt ASICs, as foxcoin is too young to have digging centralized with ASICs. Please message/post/email me your thoughts.