ez-vga scandoubler

[nasty]

My EZ-VGA External scandoubler arrived today, so I fitted into my PT and nothing! It's got a small jumper on the back to i tryed it set in the other postion and still no signs of life. So I tryed it without the jumper and still nothing! Is there anything I need to do to get this thing to work? system specs below!

scandoubler does'nt do anything, no lights, nothing!
I did try a different Monitor lead with one I use for my GFX and I know the monitor port works on the amiga as I had the Philips CM8833-II connected to it without a problem, so any advice will be great. I might not be able to reply until after 4.00pm

[nasty]

Sorry I should off updated this post, but I thought it would die off peacefully.  But for whatever reason the scandoubler didnt like my video port on my 2B motherboard (which the Philips CM8833-II worked fine)So with help from MR Amigakit in fault finding, I replaced the MB with an 1D and it worked 100% :-)