I recently installed Vista on my laptop (ugh... POS). If I go to open GR 1.5.1 b18 or later, I see a empty window frame and then slowly watch the window build itself. It starts at the lower left corner and works at an angle towards the top. It does about 1 row of pixels a second.
This works fine in XP with the same version of Java
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode, sharing)
I still have a lot of the old b## versions in their original ZIP files, so I started working my way backwards. The applicaiton works fine in B17, but anything after that shows this behavior.
I have yet to let it get to the top to see if it will even work after it is done building the window. That woudl be like an hour wait.