Ok after reading all 12 pages, my 2002 4.6i X5 (60k miles) is starting to have the same problems (not always starting on the first turn, it doesnt do it that often, but it is kind of embrassing).

I will take it to the AutoZone store to see if I get any codes & then try switching out the keys to see if this helps first, if not I'll try the cleaning method (need pictures so see where you guys are talking about, Im new to the forum & only had my X for about 3 months, I have no idea where certain parts are at). If this doesnt work I'll try changing out the ignetion switch & use the pictures that were provide in the link.

By the way this is a GREAT SITE!!