brain2008

My PC Restarts randomly with a blue screen. It is AMD 4000+ with M2NVM-DH motherboard,1GB RAM.400 GB Seagate SATA.Sometimes it works well as now it is working fine since last 4 hours.It restarts as i observe 1-when idle. 2-when installing new programs. and when it restarts during program installation it restart again if i try to install program after restart. AND the the same program install normally i shutdown the PC and restart after 10 to 20 minutes. So plz help. i am frustrated by this random problem.