If this is a 2000 server, you could look at msdb..sysjobs. Chances are good that the local jobs have not been updated properly, and the originating_server is set to the original name. On 2005 this table refers to the server_id, so that will not help too much 🙁
To fix the @@servername, run sp_addserver 'servername', 'local'
Regards,
Andras
Andras Belokosztolszki, MCPD, PhD
GoldenGate Software