Note - I am running Windows Vista.
I have an older Lenovo Ideapad (I have no idea what the actual model is - they no longer make it, and the serial numbers and ID have been rubbed off).
The display keeps going into sleep mode every 5 or 10 "idle minutes". It's fine when I'm doing things, but if I set it on a video and sit back to watch, it times out and the display goes black.
All of the power settings for the display are already set to "never turn off".
Is there any other setting I may be missing?