Its not the hard disk, and I can test the ram, as it has two banks of chips.

I have ordered a new cpu and cable of ebay, so fingers crossed. I keep you posted.

Thanks very much for the assistance!

I have a picture of the noise http://img823.imageshack.us/img823/1026/image0544.jpg One of the things that is quite strange, is that when it does start happening if I move a window on the screen around quickly the noise can go away, or get worse, almost in response to the different voltage load on t...

Welcome to the forums. Does it still have this noise when running on battery only with the AC Adapter disconnected? Is the AC Adapter an official IBM one or an aftermarket one? What happens if you connect an external display? it has the noise with or with out the ac adapter, which is an offical IBM...

I have a t41, I have replaced the motherboard, GPU and the LCD inverter. However I get this flickering noise on the screen, it is hard to explain, but it sometimes starts as parts of the screen where the a window is being displayed has this interference, a bit like noise you get from TV that has no ...