The only video card issue that was present was when you had an intergal video card on your motherboard (common with many laptops) and it was fixed. After that, none that I have heard of.

As for game play, there are still a lot of things missing that a casual gamer would miss. Like the combat viewer. Combat is currently just a message of who won. Combat viewer comes in December (hopefully). Not all the major races are in, no minor races, nor can you currently make new races. Lots of other "flashy" bits are not in as well. So if you are wanting all the "flashy" bits then I would wait. Overall game play is working though as far as basic mechanics so if that's all you are looking for (or are will to help find all the difficult to find bugs) and are willing to wait for the "flashy" bits then its great.