A week of this, and it's not consistant !!

Now this is the error I'm getting....

java.io.IOException: Stream closed
at java.io.BufferedInputStream.ensureOpen(BufferedInputStream.java:120)
at java.io.BufferedInputStream.read(BufferedInputStream.java:199)
at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:244)
at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:254)
at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172)
at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)

Argh !