What is the best/most stable linux distro for dual boot with win7 on my lenovo g560?

I just bought a lenovo g560 w/ 600gb hdd, 4 gb ram, igb radeon graphics card (switchable) and windows 7 os on Intels' i5 sandybridge chip. I have been using ubuntu on my older laptop before. I failed in dual booting with windows 7 with my new one both worked the first time, but after restarting again Ubuntu 11.04 just gives me a black screen of death everytime, windows 7 works fine thou. I searched and found out that that ubuntu has a problem with either i5 sandybridge or the graphics card thing. I would like to know if there are other available distros that would be much more stable for dual boot.