While posting DXdiag is the preferred way of conveying your hardware configuration, it is very unlikely that it would show anything. You are almost certainly up to date, although that might be a problem in itself, considering that you have Win 8, and new OSes tend to have compatibility issues on initial release.
I would try launching client.exe directly to see if the launcher is the problem or the actual executable. If you are reasonably sure that your game version is up to date, then parameter NoCheckVersion to your client.exe will bypass the ClientUpdate.exe update checker (which is another executable).
-- Rustyx --- 92R / 92S / 92M on Reni (Guild KnightShift). Yes, running the new FOTM R/M, cause I am not elf enough to be WD/S.
Oh, and people who have more than 3 classes are clinically insane.
