Enterprise Manager gets closed

Hi,
I am facing a problem in my SQl Server 7.0.
whenever i try to open a table in the Enterprise manager either for viewing
the All Rows or to edit the columns in the design view. Enterprise Manager
Get Closed without any warning. Although Everything seems fine when i try to
access the table from SQL Query Analyzer.
IS it a virus ?
Please advice...
Thanks and regards
jeetu
Can't ever rule out a virus, but is it one particular table or a particular database? Then run "DBCC CHECKDB('database')" and/or "DBCC CHECKTABLE ('table name')" on it.
I also can kill Enterprise Manager, for SQL Server 2000, and also Query Analyzer, by using the Fitaly on-screen keyboard program cursor key actions at the same time as the screen and Keystroke-reading Narrator. Are you using AN Assistive technology?
If EM is running on an NT family machine, is anything recorded in the Event Log? Perhaps if you switch on logging of application events? (Bear with me, the course was years ago.)