just installed my pre order windows 7 HP and started installing stuff, i got firefox up and running but can't open more than one window ??? before on xp and vista i would have 4 or 5 windows open at a time with multiple tabs in each one but when i copied over my Mozilla folder from xp it wouldn't open more than the first window/set of tabs 
i have looked through the options and stopped windows grouping stuff together but with no joy, can anyone help me PLEASE

i have looked through the options and stopped windows grouping stuff together but with no joy, can anyone help me PLEASE
