The Processor is Intel Celeron (2GHZ) 1GB RAM, OS is Windows Vista (Home Basic).The Problem is that I can’t multi task…Even if two browser windows and a media player are open the memory consumption is pretty high.I frequently use software such as MS Visual Web Developer & MS Visual C# developer(Which I know are pretty high on memory consumption).Now my basic question is that shall I try a RAM upgrade or is it the Celeron processor which is the limiting factor? O.r shall I switch to Windows XP or Windows 7 for that matter.I have tried all other possible ways,Its not a virus infection or a worm.Kindly help.