New RAM for laptop... doesn't boot

Argh… My stick of “NANYA 1GB DDR-333MHz-CL2.5” RAM just arrived, I stuck it in my laptop, and it doesn’t work.

  • With the 1gb + 256mb factory RAM - in either slot:
    Either boots to ‘Loading your Personal Settings’ and gives BSOD and reboot; or
    Hangs at the ‘Loading your Personal Settings’ screen and shows strange artifacts on screen.

  • With only the 1gb stick in either RAM slot:
    Black screen. Nothing at all. I can hear HD, CPU fan and DVD-RW power-up as usual, but no display.

WAAAAHHHH!!! Specs on the RAM are exactly the same as my existing 256mb stick (except for the ‘1gb’ bit), and it works perfectly with only the 256mb installed. I want to avoid having to send this thing back and wait (AND pay postage), so… um… Help??? :m2: