[Gtkradiant] First time running 1.6, takes over a minute/fails to start up.

[Obsidian]

ZeroRadiant_Win_2011-02-21

I've been getting numerous reports (and have experienced it myself
first hand) of ZeroRadiant hanging or taking over a minute to start up
for the first time. Users are faced with the command-line window for a
period of time before the rest of the interface loads up. The problem
does not repeat itself with subsequent start-ups, it pauses for the
first time only.

Users are reporting the issue on Windows XP, Windows Vista and Windows
7 on both 32 and 64-bit systems.

I am unsure about the cause for this issue, if it's a bug or if
ZeroRadiant is just setting up for the first time. If the latter, some
kind of loading message would be beneficial so the user doesn't think
the program has hanged.