Problem with installing SQL Server 2005?

[Angelica Jolly]

Hi,

I m facing prob. when i install SQL Server 2005 in the ending of installation i get a message of .cab file missing.
what should i do now?
Is .cab is installable then i can download it or i will have to do other thing please solve my problem i will have to complete my assignment please guys and gals.............

thanks.........