Spark won't redraw sometimes in Windows XP

Sometimes Spark decides to not redraw the window, so I have to alt-tab the window from the foreground to the background and back again to see what the person I am chatting with has said.

I use Windows XP and don’t know if this can be reproduced on other operating systems. It’s also erratic so I can’t give definite steps to reproduce it. have any other Windows XP users (or any users) experienced this bug?


Hi David,

if you find the Action “Move thread …” then you may want to move this thread to Spark support.

Try using one of the parameters: -Dsun.java2d.noddraw=true , -Dsun.java2d.ddoffscreen=false or -Dsun.java2d.d3d=false

Spark JVM Settings or Spark.cmd start script may be helpful to set one of them.