No problem. Basically, the Tech Support Forum is for problems with the simulator, not for "will my PC be OK?" type questions. I know it isn't always immediately obvious, so I just mumble about it and don't get too upset about clutter in "my" section of the forum. Hehheh
Actually, that card isn't bad. It might struggle a little if you have complex vessels such as Jumbo, Titanic or Latitude. And some environments might make it wince a little (Solent, Rotterdam, Hamburg). But it may be perfectly OK.
Take a look at my 3d setup guidelines and tweak the settings. Then you'll probably find it will work OK. There are some other guides you might find of use there as well.
http://www.shipsim.com/ShipSimForum/index.php/topic,7737.0.html