The fact that your daughter's home hasn't had any showing since the first two days may indicate that the price is too high. However, no showings could also be an indication of some other factor...i.e. property is on a busy street, neighbors close by aren't maintaining their property, or your daughter's property has its own issue.
The bottom line, encourage your daughter to talk with her listing agent to find a workable solution. Homes that are priced right and show well are selling quickly in the Portland Market.