ERROR: clGetDeviceIDs() -1

[VoID]

hi,
i'm running windows 7 64bit, have stream 2.1 and cat 10.7 installed, gpu is hd5850 and i get the following error

C:\***\oclHashcat-0.22>oclHashcat.exe example.hash ?l?l?l?l example.dict
oclHashcat v0.22 starting...

Digests: 6494 entries, 6494 unique
Platforms: 1
ERROR: clGetDeviceIDs() -1

what could be the problem? let me know if you need more information
thanks in advance

[VoID]

i guess the problem could be that no monitor was attached to the gpu .. will try it again later

[atom]

yeah ati cards must be connected to monitor... did it work?

[VoID]

works now, nice tool, thanks