Broken Connection when running query

[SMHardy]

I am running SQL 7.00.623 and when I am running this query

select
ACCOUNT.ACC_ID,
meeting.CREATOR_ID,
meeting.EU_ID,
meeting.ACT_AUTHBYID
from
ACCOUNT,
ACTIVITY meeting_contact,
ACTIVITY meeting
where
ACCOUNT.ACC_ID = meeting_contact.ACC_ID and
meeting_contact.ACT_TYPE = 409 and
meeting_contact.MEETING_ID = meeting.ACT_ID

I get the following error after it displays 2779 rows of data

"Server: Msg 21, Level 20, State 1, Line 1
Warning: Fatal error 1203 occurred at Mar 30 2006 11:51AM

Connection Broken"

I have tried creating a new db and restoring the data into it and removing all the indexes from the activity table and reapplying them.

Can anyone help with any suggestions?

Thank you in advance