The links I provided earlier were to the RC builds of SP3. If you have downloaded them, delete them. Do NOT
install them. If you have installed and have the GDI32.DLL BSOD issue then use a boot cd or alternate partition to copy over the older GDI32.DLL from C:\WINDOWS\ServicePackFiles\i386 to C:\WINDOWS\system32.
My apologies to anyone who has downloaded this.
It's not often I screw up, but when I do they're royal in their epic proportions...
I've got a spare copy of Portal, if anyone wants it message me.