I'm using the official wine ubuntu repository and have wine1.5 and wine1.5-dbg installed. Yet when my wine application crashes, the backtrace does not have the debugging symbols. Perhaps significant is that an error message box pops up saying "internal errors - invalid parameters received". Looking at the installed files from the wine1.5-dbg package, it seems strange. It installs files like: /usr/lib/debug/.build-id/<2-digit hex>/<some kind of hash>.debug. These are all elf binaries and appear to have some debug sections in them. So how do I use these debug files? I've done a lot of googling and looked at many forums and wiki pages, but I've yet to see an answer to this problem. Any help appreciated, Thanks