Super old thread bump here, but doing it anyway.
There was a very small period of time when she was on TXF, when she looked FABULOUS. The first few seasons of that show were dismal for poor Scully looks-wise. Anderson fell victim to bad fashion choices and, when she got pregnant, plaid maternity suits. The horror.
Somewhere around 1996, someone hired her a stylist and professional hairdresser/colorist. This is where she looked her best.
I would've KILLED to have her hair. Anyway, she really started falling off around 2001 or so. By the time the show ended, she wasn't looking quite so fantabulous anymore. I hold out hope that if and when a new TXF movie gets made, they will require her to dye her hair red again. Anderson can look great, so it's a shame to see her looking like 10 miles of bad road.