Incidently, Jims rule of thum is never replace your computer until you can by a non-top-of-the-line CPU that is twice as fast as the old, as you can see from this list I've pretty much followed that on my PCs: 10 Mhz 286 20 Mhz 386 33 Mhz 486 66 Mhz 486 133 Mhz 486 200 Mhz Pentium II 500 Mhz Pentium III 1.1 Ghz AMD Thunderbird (never actually used) 1.4 Ghz AMD Thunderbird Next one will probable be a 2.8 Ghz or so Pentium IV. (As soon as it is invented!)