intel mac mini flickering screen
So I have a flickering screen issue on my car when I use my intel mini. I used to have a G4 mini which also had a flickering issue, but I fixed that by using regulated power for the monitor. All my units for CarPc are now powered by carnetix PSU including the USB hub. These are a few things that I've noticed:
1) No flickering when using PPC g4 mini; yes flickering when using intel mini.
2) No flickering when using intel mini powered by household AC power (everything else is still car powered)
3) Limited flickering when usb devices are unplugged.
4) No flickering at all when itunes is importing a CD. (WTF???)
Any ideas on whats going on and how I can avoid this?
Thanks in advance.