As others have mentioned, I tried older versions of bitcoin (.3.2.1) and the present one doesn't work either. The old one would mine at half the rate, and usually had no connections. The current version does NOTHING. Click start, absolutely no change in anything whatsoever. GUIMiner, being the miner.
Also, if mining for a pool, it will work normally until I stop, at which point starting again will work at half hash rate. Nothing changes until I restart my computer.
Latest nVidia driver on 260m, Vista x64.
Read about soloing with daemon bitcoin but don't fully understand. Newbie, obviously lol