I guess this is because Howitzer uses UNIVESA, which perhaps isn't fully supported?
Btw, Howitzer is a much, much improved version of Scorched Earth which you can download the (unregistered) shareware version of here:
Ok, I admit, that could possible have been the worst error report in the history of error reporting.
I'll try to elaborate a bit: The GUI background color seems to shift randomly each time to start a new game. It is supposed to be black. Also, the tracers of the bullets doesn't properly fade between rounds, which they are supposed to.
Still not a very good report, but that's all I have for now.
