ok,my first build.i got everything together and started up comp. and got message"cpu is unworkable or has been changed".....yes I did the pencil trick.does the system know this or were the pencil lines not good enough? oh its a kt7a raid mobo with t-bird 750....it says below that press f1 to continue or del. to enter bios...is this normal? or have I screwed up?....I immediately shut it down and came here......any suggestions or comments?