this should be the easiest thing, but nowhere have I found answer. 8GB kingston SD card, has old Fat partition taking up half, orphaned the other half. using windows 7 disc management does nothing. can't nuke the partion and use the whole thing. how do I do this? downloaded some panasonic utility that someone claimed would do it, but no - only sees the existing partition and only deals with it. can't nuke it.