Screenshot plugin problems

[John Coppens]

Hi all.

It appears that the screenshot plugin doesn't release the captured files.
After 50-odd screenshots the operating system starts complaining about too
many open files, and, sure enough, 'lsof' shows all the previous
instances of screenshot as owning those files.

Even deleting the files doesn't help - probably the handles remain
occupied! 

kill -HUP `lsof -t /home/mine/Screenshot*`

solved the problem, but of course also killed the last instance
of the screenshooter.

John