For those of you that have received dust spam (transactions with 0.00000001 ltc other tiny amounts), you may have trouble sending your coins. If you try to send coins, your client might be stuck trying to sort through all those transactions to come up with a list of inputs. ArtForz made a simple suggestion to have the create transaction code ignore transactions below a certain user-configurable amount. I will implement this soon and release a new client. Stay tuned.