I have recentley purchased a new motherboard and heatsink. Before the purchase i would have a problem where the computer would freeze and have this glitchy look to it. It continued to happen after i installed the new components. I even replaced the hard drive with another one from my dell and it did the same thing. Is this an issue with my ram or my cpu, because sometime the computer would have the dram error flash but Im not sure if that is what the problem is. Please give me your feedback, is this a common problem?