Exactly, just because you place it on the processor doesn't mean it will transfer the heat properly to that heatsink. That is what thermal paste is made for. It helps the heatsink transfer heat from the CPU to itself. Without it; the processor will eventually fry because of the inability to transfer heat away from itself fast enough. There is no replacement for it; and you have to have it. Like I said, find a radio shack, best buy, microcenter, or even some Staples/Officemax stores carry thermal paste. If you need your computer now, it's going to be the fastest remedy that will actually work and save you from a dead CPU.