I am having a problem that sounds very similar to yours. My riocar was working just dandy until I decided to bring it with me on a trip to NYC for the summer. When I arrived I neglected it for a few weeks, (what can I say, I don't drive in NYC) and when I finally tried to boot it up all that happened is the blue light in the front flashes twice and then the link light in the back stays lit for about 15 seconds.
I built my own computer, but I don't even like thinking about soldering or anything else, so should I break the warranty seal and fiddle around with it, or should I send it to one of the kind and gracious members of the bbs to have them work their magic, or should I send it back to support.
Any insights would be greatly appreciated as all of the comments from the active members of the board have been in helping me realize the full potential of this great piece of technology. (you know who you are)

Thanks,

COllin