hello i have oracle database 10g as my sql server. i didnt use it for over a year and now when i open it the page just closes without any warning or error after entering the username and password. i reinstalled it and the problem is still there. i can't find why it happened and how to solve it. please do help me.

Sorry but this is where you see if the SQL service/server is running then use SQL command lines to test if it is up, down or gone.

You installed this so only you know the particulars.