it's the flame texture overlay which is present on some items. It's defined in your vmt. I don't remember exactly the name of it but you have to delete the line or put it in comment. flame overlay something ?
do you have any plugins installed on 2009 that aren't on 2010? i remember installing orion flame, and it broke dds file support. i had to uninstall orion flame to fix it
The major thing that I see is that the burst of flame and of smoke really don't change size enough. The flame in particular should start really small and quickly grow to a size that almost completely fills the view, then it should fairly quickly shrink to a pinpoint and die. Currently the flame burst just kind of appears,…