Check your battery to make sure you have a charge. Are any lights on? If you do have lights on, try plugging in a USB keyboard and hit the F button. This may allow it to boot up. Also, allow the battery to deplete completely, charge up and then attempt to boot again.
If the memory module has become loose, this can also cause the tablet to remain blank and not boot. Check that the memory card is secure. Instructions on where to find the memory and pictures can be found here: http://www.intelliquilter.com/procedures/Memory%20Module%20Installation.pdf
If this does not work, please contact support.