[ubuntu] Is it worth submitting unity bugs on older hw?

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http://ubuntuforums.org – My current "test system" for QQ is an old mitac laptop with intel 855 graphics and a pentium M processor. Right now, Unity doesn't even run. I've submitted some bugs, but I'm wondering if it's worth the trouble, or if I'm just making noise for hardware that they don't care about supporting. Has there been any official statement about what hardware Unity will support? (Hardware)