MINNESOTA CITY, Minn. – A Hidden Valley woman told investigators that she was bamboozled out of $2,000 in an online scheme. She said her computer screen froze, followed by instructions to call for a fix. She did — and was told to buy gift cards and call back She did — and provided numbers from the gift cards to unlock her screen. A day later, realizing she had been scammed, the woman called the sheriff.