This happens sometimes if you have been mining P2Pool, or other services which generate a large number of small inputs as well. It's not a matter of the transaction amount, it's a function of the number of inputs required to generate a transaction for the specified amounts. You run into the transaction size limit of the block chain.
If that's the problem, the solution is still to make smaller transactions. They will use fewer inputs so that your transaction fits within the maximum transaction size for the block. Also, be prepared to see some large TX fees for these transactions.
In other news:
IFC Lotto ticket price is dropped to 100 IFC per ticket, from 1000. A user here pointed it out to me, with a rise of nearly 10x in value, a ticket price decrease of 10x seemed in order. The tickets already purchased will be converted at drawing time into the appropriate number for your deposit.
http://lotto.coinworld.us/IFC/
And also thanks to TECSHARE for a nice bounty - I've added a new price converter to the Ticker Image API at cryptank.com.
You request an image with USD and the resulting price in IFC is displayed.
Simple instructions for use are at InfiniteCoinTalk.org.
More detailed instructions on the Ticker Image API are available at http://cryptank.com/ticker/
After upgrading to 1.4 from 1.3 everything works fine. A test send of 1,000 went through with ease.. Oh BTW if you offered scratch tickets I'd be much more inclined to play vs straight up loto.