98 k1500 neutral safty switch gone again?

98 K1500 5.7L has 200,000k have changed neatral switch 4 times in the last 2 years. Notice that the shift indicator goes out when i'm driving at any speed, will come back on, but the abs and brake lights come on, this last time my security light came on (other were out). now truck wont start,i can here fuel pump,but when put in start position no power. i've replace starter relay,starter, battery, altenator. have been told that its a cumputer problemhttp://www.automotiveforums.com/vbulletin/images/smilies/banghead.gif could that be it or have i purchased bad switches.they were not purchased at a dealer. never seen or heard of a vechicle going through that many switches. any ideas would be nice to have.

check the connectors on the neutral safety switch they were know to be bad or terminal not making contact and other things going wrong with them.

replaced 4 pin conector on safty switch, found that the yellow wire pin on switch is pushed in. all three of the old switches are pushed in, any ideas why this is happening.

Found a bad connection at starter relay,replaced connector and truck is starting great.