Mail Triggering in SQL-Server2005

Question

hi friends,

I need to trigger a mail when i update data from a particular table. I got a Procedure for mailing, it executed successfully. but, when i update the data from a table, below error was Accured.

xp_sendmail: Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client.

how can i solve this problem? can anybody faced this before, give me a reply.