[SL viewer issues]

Am having the same issues with the login screen....had to do a re-install on the pc and it was working up to this.....just getting a half black half grey screen instead of the usual login screen...nothing else appearing

 

Any help much appreciated....will be trying one of the third party viewers tho to see if that makes a difference.

 

 

Processor: Intel® Core2 Duo CPU
Graphics : ATI Mobility Radeon HD family
RAM : 3070MB
DirectX 11