Nokia 5110 not working

Hi there,

I'm sorry to post a message here, I'm not sure it is the right place, but I don't know where else to post it. I'm François (papamaker) and I'm selling a kit indcluding this kind of screen: http://www.kitco.fr).

My question is about this:

These LCDs really haven't been great - as I said in another post the LCD manufacturer sent some really poor quality displays, but once I realised I started trying to check LCDs before sending them out.

I'm also selling an electronic kit and I face a lot of problem with those screens (~30% are not working). I was wondering if you have some hints for me? Did you find a good seller for them?

That would be great if you could help me.
best regards,
François