Upon connecting to the mining pool, cudaminer shows the following lines and then exits:
[2014-05-12 13:51:21] 1 miner threads started, using ‘scrypt’ algorithm.
[2014-05-12 13:51:21] Starting Stratum on stratum+tcp://ypool.net:9090
[2014-05-12 13:51:21] Stratum session id: 22222222222222222222222222222222
[2014-05-12 13:51:21] Stratum difficulty set to 512
Abort trap: 6
Any ideas?