On one laptop I very often get stuck in a "Please log in
It looks like you're not logged in to Remember The Milk. To continue, please log in." loop. If I keep trying eventually it logs in.

But why doesn't it just work in one login?

I think on other laptops it just remembers my login and I don't even have to do anything.

The only difference I can think of is that on the problematic laptop I also have the RTM app installed. (both the app and the website have the same looping login problem)

Could anyone please help out to get this problem resolved?