What to do with old bugs that aren't well defined?

[alexeijh at westnet.com.au]

Was looking at:
http://bugs.kde.org/show_bug.cgi?id=79975

The bug isn't well defined and it's been 6 months since a reply from bug 
reporter.

What's the protocol?

Do we just leave it open and unconfimed?

Lex.

PS - sorry if this comes up twice, I keep forgetting I have to post from the 
subscribed email address and not any others.
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