You updated your drivers, so now it recognizes your GPU properly. It's a good thing.
Also, nice laptop.
When did you last update them? Did it happen just before/just after doing it? You could roll back if it is a driver problem, most likely.
EDIT: FYI, it would be better to have it showing the correct specs. It would be a HD5870 with 700MB VRAM. The top one is general series of card, as well as showing shared system memory, which you don't really want.