SQL SERVER 2005 not installed even VS 2005 correctly installed..

hi ,  I was using visual studio 2005 with sql server 2005.. it was worked well.. After a while i have uninstalled visual studio along with sql server.. Today i tried to install it again.. Visual studio and sql server mobile edition installed successfully.. but sql server 2005 not installed... I got the error log like,
 
[04/09/11,22:48:49] Microsoft SQL Server 2005 Express Edition x64: [2] Component Microsoft SQL Server 2005 Express Edition x64 returned an unexpected value. [04/09/11,22:48:50] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2005 Express Edition x64 is not installed. [04/10/11,09:25:29] Microsoft SQL Server 2005 Express Edition x64: [2] Component Microsoft SQL Server 2005 Express Edition x64 returned an unexpected value. [04/10/11,09:25:30] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2005 Express Edition x64 is not installed. ***EndOfSession***[04/10/11,12:16:28] Microsoft SQL Server 2005 Express Edi ...