A problem was noticed when Firefox 3 was released. A quick way I found to get around this issue is to click the "Go Advanced " button instead of the "Post Quick Reply" button and post that way. I'm using version 2.0.16 still which has no issues and am reluctant to "upgrade" to version 3 until this bug is fixed on this site,( It's been reported that this is the only site this issue occurs on
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Going with what was posted above concerning looking at the engine AND the body, up here in the northern part of the US, the vehicles wear out with the body first due to heavy salt usage in the winter, and just the opposite for the southern regions. Twenty years ago I knew a guy who loaded his flatbed up with good engines and traveled down South and sold them or traded them for cars with great bodies but bad engines. He then brought them back North, replaced the engines and re-sold the cars.