I upgraded an older handheld with Dyson this month. The new one, the DC59, worked about 20 minutes then a problem. If I try to use it, it starts for less than a second then stops. I found if I take out the filter, then works continuously. So I cleaned the filter with cold water as recommended and let it thoroughly dry, but still the same. Called tech support yesterday and they kept trying to say I had damaged it by cleaning it and I kept telling them that this problem started before the filter had ever been removed. In any case, they are sending another filter but I am wondering if this is going to be a continuing problem. I have a 30 day return possibility, so would like to decide before long. Can anyone let me know if this is unusual? Or if this is likely to be a continuing problem?