MasterVB.NET

Hi all,
I have Windows Server2003 on my machine. First I 've Installed SqlServer 2005 and then, after removeing VS 2005 which installed with Sql Server 2005, I've Installed VS 2005 on my machine.
Then i've used the asp_regiis.exe then restart my system and its working fine to check my system i made a web page and run it over the IIS and its working fine.
But after a week now when i want to run my same page again its showing me connection time out error.
I am using P4- 1GB ram and also've a local network on my system. I want to know what is wrong with the system.
Is any thing that is not installed properly or, the network port creats a problem, or any thing else.
who is the culprit .
I going to format my system, but before that i want to know the problem. If something worng with the procedure i used to install Sql Server 2005 and VS 2005 is wrong then plz give me a list of instruction to install it on my machine.

If you dont know the problem or facing the same then plz reply back to me.
If i will find out some solution then i want to share it with you.

Please send me your feedbacks.
Thank you.
Vijay Shandilya vijay.shandilya