You may be interested at this. They mention that installing DBD-Oracle8, instead of DBD-Oracle solved the problem. Also check on the version number - 1.06 solves a few problems that were in 1.03. Hope this helps a bit.
Snippets of code should be wrapped in
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tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor