I've been trying to transfer 5000 DGC to Cryptsy for the past couple of days and constantly getting "Error: Transaction creation failed."

I've previously transferred multiples of 5000 DGC without issue. Any ideas?

Edit.... I'm able to transfer small amounts, however it appears the fee charged for the transaction is completely random, example 1000DGC first attempt 5.90DGC fee, clicked cancel and tried again 3.30DGC, tried again 1.80DGC, tried again 5.50 DGC - what the hell is going on - is this a joke, with shit like this going on I'm considering moving my miners back to LTC.