I dont know if this is old but i have one of the Toshiba laptops that are listed as being prone to have problems with DS and i havent been able to get it to work for nothing. Ive tried and tried everything for 2 months then all the sudden i try running it in safe mode and IT WORKS!!!!!!! It has zero problems now and works great!!! No more borrowing laptops from the neighbor. Ill bet all the laptops that are listed on www.chuengineering.com can be done like this. If you have been having problems try this and post what happens.