Sorry to hear about this. This issue has been rare but a few have reported it. Did you make sure that the card is fully inserted until it bottoms out? Please see pictures at
http://jevois.org/start/start.html
the card should be about 1mm deeper than the edge of the mini-USB connector. If you have short nails you may need too push it with a coin, key, small screwdriver, etc. Just make sure you are ready to catch it, because if you slip with your tool, the card will come flying out.