Suggestions about removing heatsink on video card

[funniecalvin]

I have just bought a Vantec Iceberg 4 Pro to replace my stock heatsink on my Video Card . I was just wondering how I should go about removing the stock heatsink. Thanks for your help

[rjfvillarosa]

The only time I had to do this was on my old nVidia card, I held the card down flat and firm on the desk with one hand and slowly twisted the heatsink off with the other hand. The new fan would not fit the old heatsink so I had to change it, I then glued the heatsink back on with a two pack epoxy glue and it worked perfect for years. I am sure that you could use one of the new self adhesive heatsink pads instead of the glue.
BTW that old nVidia card is not in a machine at the moment but I know it still works, because I occasionaly use it for testing.