thanks, i ran the nero clean tool and was able to uninstall it (nero). and i attempted to install again. whola! its a success!! hehe. thanks once again. again another tiny problem, pls bear with me. is there a problem with my motherboard, cause everytime i swtich on on my cpu, there is a time when it restarts back? sometimes it keeps on restarting, and im a bit worried. what seem to be the problem?