Navision 4.00 crashing when trying to open outlook

Hi there, I have installed Navision 4.00 SP2 on Terminal Server and trying to send email from customer card → communication tab. but every time navision is crashing. [B)] No contact card has been defined to avoid using interaction wizard. I am using SQL server option and mailing functionality is working ok on windows xp but not on TS. I have installed Navision 4.00 SP2 on terminal server using add/remove wizard. Is there any other way to install Navision 4.00 SP2 on TS like previous version 3.70?? [?] If yes, could use please provide an instruction. or Is there any setting on Outlook Exchange is missing?? [?] My Outlook exchange server is residing on the same box. or Is this a known product bug??[?] Please help!!![:(]