I'm using the raspbian installer. When I get to the step to select disk partitioning the video display starts to blink in and out.
At first it just blinks a few times and progresses to the point where it's just off. I can only get video by repeatedly switching consoles, but even then it only flashes briefly.
I have the Pi attached to a 70" HDMI 1080p TV (it is seriously the smallest thing I have available).
My first thought is that perhaps there's not enough video memory allocated. I'm just starting to research this but I figured I'd ask to see if this is a common before I jump in and spend potentially a few days on this.