Hi Folks, Hoping someone can help me figure this out. I swapped HDDs between a G5 and MacPro this morning. The MacPro was connected to a large LCD TV via HDMI for it's display (using a DVI to HDMI adapter) and it worked great for just scrolling images of our projects (no audio). When I put it's HDD in the G5 and connected it to the display the same way, I got nothing on the screen. Thinking it was a video card issue on the G5 end, I plugged in a different monitor and rebooted the G5. This time I got the flashing question mark folder meaning it couldn't find an OS to boot. So now I can't tell what the issue is. I thought HDDs between G5s and MacPros were the same? If not does this mean the older G5 drive won't work in the MacPro tower? (I haven't tried yet). Thanks in advance!