I have installed a new hard drive into my first gen. emac, I seem to be having a problem though, when my original drive was a Seagate (st360020a 60gb 5400rpm) I had noticed that my screen would jitter or vibrate a little bit. Now with my new Maxtor (6Y160L0 160gb 7200rpm) in there it seems that when the drive accesses the screen really jitters. Any ideas as to why this would happen ??? I hate to take this apart again but if I am going to blow the power supply because this new drive is drawing to much then I guess I will have to do just that. I also thought that it might be some sort of EMI ???? Thanks for the help !!