R/3 server unable to start?

When I am opening the R/3 MMC, I am getting the console. but in that I am unable to expand the console. I am unable to see my server and hence unable to start my server. I am using R/3 4.6c. I have this installed in P4 system with 512RAM, 160GB. It got installed well and worked fine for some days but now I am facing some problem with it. This problem started after I shut my system without stopping the server. plz provide a solution for me, as i haven’t uninstalled it yet.