I've got strange issue. I have a simple app that draws three lines (attached). I noticed that if I run several copies of it, finally I get the one that is not rendering. I have Windows 7 Enterprise x64, JDK 1.6.0_24 32bit, JavaFX b28, MacBook Pro, external monitor, ...

For the previous experiment I had only 5 apps running simultaneously. 5th was not rendering. And I don't see any errors or exceptions in the output although I run it using "-Dprism.verbose=true -Dglass.verbose=true -DNWT_TRACE_LEVEL=3".

For the last experiment I had 11 apps running simultaneously when next one stopped rendering.