Hey since a few days when i send my girlfriend an sms over biteSMS (i have T-Mobile Austria, and 3g iPhone) she (Telering Austria, iPhone 1st gen, uses Carrier for text) receives , sometimes crypted texts, (triangles or other symbols and it not readable) this happens basically when the message is longer then 1 message.

Any idea what causes this problem, because this happend never happend last week the first time?