Here's screenshots and video clip below are of Ubuntu 6.10 with Beryl Windows Manager installed on a 2002 1.9GHz Gateway Intel Pentium 4 computer with 256MB Memory and an NVIDIA GeForce2 MX graphics card.
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Although ease of use hasn't been Linux-based operating systems strong point, things have recently begun to change. With large Linux communities like linuxquestions.org and linux.org, it is becoming easier to find the support needed to make the transition from Windows to Linux. There are some pros and cons to every OS out there, but Linux platforms like Ubuntu (especially their latest Edgy Eft release) can make older computers run like new and have very little (if any) virus threats.