Windows 7: Quintessential Media Player v. 5.0 B121

I use QMP to save streaming audio from the internet. I used to be able to click and hold the link for a playlist and drag it over to QMP's playlist, where I could save the streaming audio. But now when I drag the link over to QMP's playlist, it just shows up as a red circle with a line through it telling me I cannot drag and drop the link. Any ideas as to why this would be happening? I use this same exact OS and QMP on another PC in my house and it works fine. Thanks for any help.