Various coloured dots?
Could be a few things.
A driver update might fix it. Also it could be your video card's driver is set to a 'performance' mode rather than 'quality'.
Over clocking can cause artefacts like what your describing, also an overheating graphics chip could be the cause.
Last & most unlikely cause would be if you were running the game in 16bit colour, but even old video cards rarely dither as badly as your describing.
Last edited by SkulFuk; Jan 15, 2009 at 10:54 AM.