hi,  I hope someone can help!  trying to install a (legal) copy of HL2
on my son's PC- specs on the PC are higher than required according to
the game's box.  When we try to run HL2, there's a splash screen and an
hourglass and "loading half life 2" and then it just closes down and
goes back to the desktop. Counterstrike works okay.

Although there was no error, I did try the fix suggested in some places
of renaming one of the files ( sourcemodels.gcf ) and then on starting
the game next time, it was re-downloaded... didn't help though.  Also
we upgraded his nvidia drivers to the latest ones.

ANy suggestions would be great.

~sd