@ aysyr & Gridcoin - thanks for the replies.
This may be a face-palm moment but I don't have any GRC in my wallet. For some reason I thought the beacon would loop the payment back on itself and so not require a balance. Please can you/someone send me enough GRC to get started

GG6XHgjJYmzaSxAeRTeRRhC1g3Smgk1QDh
If this fixes the issue 'll add a post to the 'How to CPU mine' thread as I think the current explanations miss this out.
I have Gridcoin v1.1.5.7-g71-prod
Thanks for your help!
Hi,
I will add it to the tutorial, sorry for the troubles.
Just a quick update for cpu miners...malaria.net are performing some maintenance and you will see a "-1" error in Projects Console. This error means that your wallet address is not equal to the BOINC username. However I think it is due to the maintenance..every machine I CPU mine on shows this error since this morning for this project, it was ok earlier and I didn't do any changes. It shows the creedits correctly for other projects.
So I would suggest for everyone to run atleast 2 projects to have backup in case one goes down temporarily.
Hope this helps,
Andrew.
I just realized today all of the GPU users are verifying API credits while only the poolminers are required to do that at this time and we are probably hitting the 5 APIs quite a bit (even though we do stop querying after 1 success, Id like to quiet it down so we don't cause extra traffic). Ill fix this in the release tonight.
The Linux version is almost ready for beta testing. It's finally running - all it needs is an installer.