INotifyPropertyChanged causes cross-thread error

Here is my scenarion:

I have a GridControl bound to a BindingList. At first what I was doing was creating a worker thread and access the BindingList directly, but this was throwing a "Cross-thread operation detected", so I followed the guide here:

http://www.devexpress.com/Support/Center/p/AK2981.aspx

By cloning the original BindingList into the worker thread and changing that one, I got the desired effect. However, I recently implemeneted the INotifyPropertyChanged into the object that is held into the BindingList, and I started getting the error again.

My guess is that the GridView is still listening to the INotifyPropertyChanged from the object.

How can I fix this?

My class:

public class Proxy : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    protected void OnPropertyChanged(string name)
    {
        PropertyChangedEventHandler handler = PropertyChanged;
        if (handler != null)
        {
            handler(this, new PropertyChangedEventArgs(name));
        }
    }