Who all out there having an issue with utilizing all 4 Dimm slots of your Motherboard? I just Got a 2 gig Expansion Kit today and i can only use 1 of the 2 modules and that only gives me 3 Gigs of memory. I tried out both Sticks and they both work it is just the fourth Dimm that is not letting me post. Once i pull it the System posts and loads into windows but then it switches the memory to single channel. I cannot figure this out how to get it to post with all four sticks in there so any help would be appreciated.