Running unit tests with flashplayer under wine

I want to set up a new build machine using Ubuntu 13.10 to build with
flexmojos 6 and Apache Flex. To be able to use a current flash player, I
want to use the windows flashplayer with wine. I have managed to set this
up, but now I get the following error popping up when I run the unit tests:

Error #2044: Unhandled securityError:. text=Error #2048: Security sandbox
violation:
file:///Z|/home/wdb/flux/client%2Ddomain/target/test%2Dclasses/TestRunner.swf
cannot load data from 127.0.0.1:42188.
at
net.flexmojos.oss.unitestingsupport::ControlSocket/connect()[D:\Projects\flexmojos6\trunk\target\checkout\flexmojos-testing\flexmojos-unittest\flexmojos-unittest-support\src\main\flex\net\flexmojos\oss\unitestingsupport\ControlSocket.as:52]
at
net.flexmojos.oss.unitestingsupport::TestApplication/runTests()[D:\Projects\flexmojos6\trunk\target\checkout\flexmojos-testing\flexmojos-unittest\flexmojos-unittest-support\src\main\flex\net\flexmojos\oss\unitestingsupport\TestApplication.as:55]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at
mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/core/UIComponent.as:13413]
at mx.core::UIComponent/set
initialized()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/core/UIComponent.as:1831]
at
mx.managers::LayoutManager/doPhasedInstantiation()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:850]
at
mx.managers::LayoutManager/doPhasedInstantiationCallback()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:1188]

Any idea what can be wrong?

regards,

Wim