Hi all,
@belph, no need to thanks mate. i think internet is a wonderfull and powerfull tool where you can learn and share opinions and thoughts

and forums are created to this matter, to share opinions and thought and knowledges
btw the way after hours of research and brain damage

i got some kind of fix if you want to hear... so i read somewhere that an pc usb card should do the trick, so today i went to a pc shop and bought one... it was 10? +\- here's the link (http://www.conceptronic.net/site/desktopdefault.aspx?tabindex=1&tabid=212&cid=10&gid=1030&pid=C480I5_V4).
well i got home and plug it into the motherboard, and pluged the mouse on it and i pressed the power button...and i crossfingered lol... so the boot went normal, and fast as usual when you're using another mouse and i thought well it's fixed.... but then.... it frooze...so did my veins, my heart and brain.... just before loading windows this little sucker had to freeze the OS loading just for some 10 secs max. ... but there's a point to that i think... and here's my question\doubts, the pci sound card boots, i guess, just before windows, i can hear some kind of "clicks" (btw it's an asus xonar dx), so if the usb sound card is plugged into the motherboard, and have a "slow" boot, so it's possible the usb card can also "boot" just before win loading?
Is there a way to make it "boot" earlier?
My final thoughts:
So if you want some kind of fix and make your steelseries xai to work, this is the fix for me, not mine because someone already discovered this but i didn't knew if it was successful or not...
So it's cheaper than buying a new mouse? yes it is...is it acceptable? well not for me and shouldn't be for Steelseries, but after spending almost 70? on a new mouse, "the lost hours" reading and searching instead of enjoying my brand new pc, i think it's the only way if you want to enjoy this mouse.
the other option? well just sell it, returned to the shop if you can or just put it somewhere you can't see it

because if you're unlucky as i was you can't properly enjoy your mouse and pc because of unplug\plug every single time you want to use your pc.....
Thanks for reading, sorry for the long post.