So you haven't been able to play yet?
Did GameGuard download the updates that it downloads when its a fresh install? The problem might be your Protection software blocking GameGuard from working as it should, I suggest setting the whole Infinity MU folder as an exception/trusted file and running it with anti-virus/etc. off so that GameGuard can install initial updates (if your protection is fussy like my Norton xD)
tell us if you make any progress :]
p.s. I think its best to leave contacting RESi till last, especially with things like this.. besides, he visits forums too :]