Guild Wars 2

This is a cross post, i posted about this yesterday, same problem
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Hi, My game has been running fine for ages on my mac mini and this black screen after login problem just started yesterday, i deleted the app folder gw2 folder and then it redownloads and the game starts up, but same problem i can hear the music and if click on where my char should be the game loads and i can hear i am in the game, but still a black screen, also on the 4th time i deleted the app folder when i started up the game and it repaired itself, i got this message “GrDeviceGetMetric(GR_METRIC_DEV_CAPS, &devCaps)
A serious error has occurred that prevented the application from continuing. A report has been sent to ArenaNet to help determine the cause.”
Anyone ever seen that message or knows what it means?
Thanks
Mac Mini Specs:
2.3 GHZ Intel Core I7
4gb 1600 MHz DDR3
OS X 10.8.2 (12C3104)
Intel HD Graphics 4000 512 MB graphics

Hi, My game has been running fine for ages on my mac mini and this black screen after login problem just started yesterday, i deleted the app folder gw2 folder and then it redownloads and the game starts up, but same problem i can hear the music and if click on where my char should be the game loads and i can hear i am in the game, but still a black screen, also on the 4th time i deleted the app folder when i started up the game and it repaired itself, i got this message “GrDeviceGetMetric(GR_METRIC_DEV_CAPS, &devCaps)
A serious error has occurred that prevented the application from continuing. A report has been sent to ArenaNet to help determine the cause.”

Anyone ever seen that message or knows what it means?

Thanks

Mac Mini Specs:
2.3 GHZ Intel Core I7
4gb 1600 MHz DDR3
OS X 10.8.2 (12C3104)
Intel HD Graphics 4000 512 MB graphics