DaveT wrote:

I have been "happily" processing CUDA units for more than a year. Now, after "upgrading" to BOINC
6.1.0.18, it says "3/28/2010 9:43:05 AM	SETI@home	Message from server: Your computer has no
NVIDIA GPU". Nothing in the computer has changed. I suspect the new BOINC is misinterpreting the
fact that I have two video adapters in the computer. One is an "integrated" ATI that is used for
most computer operations, including booting the computer. The other is a Gigabyte card with an
NVIDIA GeForce 8400 GS chipset that is connected to a 40" HDTV and is used exclusively for High
Definition video playback. The only change that might affect this is that I upgraded to the 40" HDTV
from a 28" HD monitor. When the TV is switched to another input, the computer seems to "know" about
this, because it makes that "ding-dong" sound like it makes when you plug in a usb hard drive.

For CUDA to be active, the monitor has to be attached and powered.  There are
dongles to make the card think that is the case when it isn't.  Suggest you read
the number crunchers forum at Seti