So my Vibrant has been freezing on me and then consequently restarting to the state right after the Galaxy S boot screen, where it shows no signal and searching for media on the SD, etc. Today it did some really really weird stuff! I was using google nav and then all of a sudden the screen froze, but it didn't reset or anything. The screen it froze was not good looking either, it looks like it's faded with scan lines. I attached a picture, sorry for the low quality, but only had a friend's Pre to document it before I had to do a battery pull. But you can see the scan lines on the screen faintly.