GTS 250 & 120hz monitor producing "purple Snow"

I am unsure which hardware is failing on this so forgive me if this is a simple answer.

I recently purchased the Samsung SA700 23" monitor & when I attempt to put it in 120hz I end up with this purple, snowy screen. Otherwise when it's 60hz, it works fine.

The Video Card I been using is the Geforce GTS 250. The card has been working fine for me for the last 2 years.

Both Hardware is up to date on drivers as well.

Further note: I called Samsung & they were claming that it's the video card. Would I need to upgrade the video card to handle the 120hz?
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More about 120hz monitor producing purple snow
  1. Its an older card, and probably doesnt go up to 120hz, even though it should.

    Unless you really really really really really care about playing at 120hz, then its not a really big deal, and its not worth an upgrade.

    What games are you playing?
  2. Mostly just playing SWTOR. I was concerned when I saw the Purple snow So I just wanted to make sure which hardware was causing the issue.
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