I think the programmers have been released on bail.
Anyway BI have been releasing patches and improvements constantly through out the alpha/beta and continue to now its been released so I disagree with what you said about 'no support'.

You may want to try using the dev-build version which has the latest patches which may help with the problem.
Or possibly posting your problem on the BI forums rather than the feedback tracker, may find some better help there as this is more a suggestion box.

It may be the video RAM being over loaded, press and hold; left shift and the - key on the numpad then type 'flush'
You can do this while its on the desktop
Also you may want to turn down some settings to prevent the vram being overloaded :)