I have recently installed Windows 7. It's a new install therefore has zero 'junk' installed if thats what you wish to call it. I usually leave my PC switched on at night to download links using Internet Download Manager. What's been happening since i installed Windows 7 is that half of the links will download and the rest will have stalled. When i get up in the morning, I try to open Firefox and it says: " insufficient system resources exist to complete the requested service" I try to shut down and that doesn't happen either so I have to perform a forced reboot. Any idea why this would be happening?