Hello,

to work with ERROLOG you can check the following links:

http://sqlpost.blogspot.com/2009/07/sql-server-working-with-errorlog.html

http://sqlpost.blogspot.com/2009/07/sql-server-sql-tips-select-errolog.html

In the other hand, you can check with windows explorer the default path where the errolog files are located:

C:\Program Files\Microsoft SQL Server\MSSQL.#installation\MSSQL\LOG

in my case is

C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG

you can check there the possible issues, if the files are there and if the issue is the SSMS itself, you can trying resintalling your SSMS tool.

With Regards,