Power problems

Had always sticks by SanDisk and no problems.
This stick my cable box had constant problems (had meanwhile Verbatim 2, ie not due to a defect).
Was half the time not recognized (both during insertion and in rebooting of the receiver previously been detected Stick).
At the computer no problem (Mac and PC).
Whether it's the speed or compatibility issues exist, no idea.
However, since no other drive or various USB drives had any dropouts at the receiver, it is my opinion on the stick.