Ok,

The documentation in BnetDocs says that sending packet 0x59 is optional and if sent, it should be only be when you the 0x59 from the server or receive a 0x0E that tells so.

Now, after I successfully create a new SC account, the server sends me the 0x59.

Ok, so I decided to respond back with the 0x59 packet.  After I send it, I am  can supposely just to continue with the rest of the logon sequence.

Sometimes I am able to just continue with the logon, but frequently I get a hang.  The connection halts and evetually timesout.  After sending or recieving the 0x59.

Is there something that I am doing wrong?

You're probably doing something wrong.  You can reply to it (0x59 message) almost anytime you wish after receiving it & there shouldn't be any issues

Whats Starcarft ???

That might be his problem right there, typos. :P

Some code and/or packet log would be helpful and lead you too success faster