Thanks for your reply, yes it makes sense. I tried system restore some time back, it didnt work.I lost the drivers that came with the device, so I let windows 7 install the drivers automatically. I also tried a couple of versions available for download on http://downloads.guru3d.com/Videocards---NVIDIA-GeForce--Vista-%7C-7_c32.htmlDidnt work too =(I also noticed this issue about the same time I realized that the DVI port for my old samsung monitor failed (couldnt even boot in safemode) afterwhich I have been using a vga - dvi cable to link to my graphics card instead. Now I purchased a new monitor and went back to DVI-DVI but the problem persists. Is there any way good to log the boot process to see which is the hardware/drivers giving me the boot freeze? thanks mitz!