I am also having the problem and can't send any coins....I have several transactions that have been stuck for 3+days.

I have tried deleting everything except wallet.dat and letting it rebuild.  I did this with both version of wallet.  still no luck.  I increased the transaction fee to .01 with my tests to see if that would help...no luck.

Any help would be great!   Dev needs to address the problem, seems I am not alone!

Status: 0/unconfirmed
Date: 3/20/2014 23:12
To: 8dDpFwpVWw9Ra4d8mqch54XEFAsWJr6Vh6
Debit: -7.00 888
Transaction fee: -0.01 888
Net amount: -7.01 888
Transaction ID: 51fa764a3cc2c02acf0d4e8d3c2cbafa89c06d71eabf22b304c59639f69cf05b