I've just bought an Nvidia GTX 560 Ti video card and I'm using it with a CRT monitor. The monitor is connected to the card via the DVI->VGA adapter. Here's the problem.
Everywhere where the Nvidia Windows driver is not used (e.g., BIOS setup, POST messages, DOS mode, Windows XP installation) the pciture/text looks blurry. It looks blurry in Windows XP, too, unless I install the Nvidia driver. Once the driver is installed the picture becomes clear and sharp in Windows, the way it should be. Of course, it's still blurry outside of Windows (BIOS, POST messages, etc).
I've been using an Asus GTX 285 until now, and the picture looked sharp with it everywhere. I wonder if this is a defect of my card or if it's just the way newer generation NVIDIA cards work.
It seems that there are at least two other people with the same problem (they use GTX 480s though). Here's the thread I found where it is discussed.
The card otherwise seems to work fine in Windows once the driver is installed but it still bothers me somewhat. Why would the picture be blurry outside of Windows? I've never seen this problem with other cards I owned. Anyone could explain this behaviour?