I have been using Ubuntu in My Acer Aspire 5920 and Aspire 1 since last many years.
Recently I purchased Dell Vostro 3750 - Intel® Core™ i7-2670QM with Nvidia® Geforce™ GT 525M, 1GB (Quad Core)
I tried installing Ubuntu 11.10 and 12.04 beta. I an able to use both from live CD without any problem. But when I install it, only a blank screen appears after the boot menu. I tried changing quiet splast to nomodeset and no splast. Didn't work. I am totally stuck here.