please help me

I didn't understand anything about this problem.

I have got a problem about asp pages. when the server start asp files run very well but in 2-3 hours later the asp files stop. and also I must restart it then it run so good. I checked all the services but I couldn't found any problem.
it also doesn't give me an error but it is going to a loop and also the status bar going to the end but the pages aren't displaying.

 

mrb..

if your asp and .net pages stop responding but html works fine
same time then first check the odbc dns connections might cause error or %100 CPU... then investigate a poorly written asp script on the server...