The flickers go on and off, like christmas lights lol. I have an HP Pavilion dv6409us, Windows Vista Home Premium 32-bit.
I opened a topic like this on HP forum and this is what they told me.
"Take a look at this document and let me know if performing the troubleshooting steps, helps to resolve your issue."
So I first followed the instructions, and compatible with my laptop I installed
Mobile Intel 945GM Express Chipset Family Driver ►
2007-05-10 , Version:126.96.36.1997 A, 7.71M
and BIOS (1)
WinFlash for HP Notebook System BIOS (for Notebooks with Intel Processors) - Microsoft Windows Based ►
2010-04-12 , Version:F.2E, 3.11M
The pixels are still there on my laptop screen. I've considered resetting my computer to factory settings, but I'm not sure if that will help at all.