Hi Hodgkinson,
I have found that the biggest reason why any card is hard to install is that the plastic connector on the card catches on the RF sheilding, you can always split your case and install the card with the case open, and you will see where it catches and it's so much easier to install with out the sheilding the way.
Yes it takes more time to install a card but it saves yor thumbs and avoids you having to use a screw driver (which is a No No)