|Low Resources generally means that Ram is being used without being released. Without knowing anything about your pc except that you are running XP giving a specific answer is nigh on impossible.|
Have you updated to SP.3 plus all updates since then?
Please post your pc specs and version of XP being used.
Open Task Manager>Performance to view the CPU and Page File usage, then Processes to find out what's using the resources.
Google "Windows XP low resources" (without the double quotes) to find many suggestions.
Please come back & tell us if your problem is resolved.