Fired up my Ubuntu and dowloaded the code. Running an Nvidia card in that box. Compiled it and ran the same command:
oclvanitygen -D 0:0 -f addresses.txt -o found.txt -k lastkey.txt 3000
Still doesn't find anything.
What's the command you ran to have those return positive?
I do not find the address program, I know that it is in the reverse order, but everything is similar to the one described above.