Did the first five steps, and used strong pills and sunbathed about 100 times. The necklace event just never triggers. Did get gallery 3 pics 1-4, and 6, but no further progress anywhere else. No idea what else to try...
1- Check the toilet hole @ 17:00 (MEL + ANN)
2- Check MEL room @ 18:00 (MEL + WILL, to see this, Vicky should have been introduced you played the sunbathing scene for few days after she has been introduced on that scene)
3- Play the Sunbathing scene until Melinda takes you with her while she talks to Linda about her problem.
*During that time you can ask Linda for strong pills again, provided you have done it at least once in V7. When you get the strong pill, try it at least a couple of times after hiding towels to unlock something in the sunbathing ( point 6)
4- Kitchen @ 9:00, "Ask about mammogram"
5- Sunbathing, she goes to Linda again, and you go with her.
6- When you buy her the necklace, give it to her at the sunbathing event, on days you are alone with her.
7- Visit her room @ 14:00 at least twice to unlock the Whisky availability.