I have an HP Desktop Pavilion m8150n, Intel Core 2 Quad Q6600, Windows Vista
Ultimate (32), 4GB RAM, 640GB hard drive, NVIDIA GeForce 8400GS. I have
upgrade Vista with sp1.

I have been having some problems with my pc hesitating when I'm clicking on
things in a game. I have just recently upgraded my memory from 3 to 4GB,
thinking this would solve my problem. It hasn't. When I go into the Task
Manager, it shows Physical Memory (MB) Total 3581, Cached 2730 and only 56
Free. Is this my problem? I have a long list of processes and services
running and I'm sure I don't need all of this running at the same time. This
could also be causing my problem, but not sure. I have shut down some of
these processes, but I'm not sure which ones I actually need to run the
computer.

This problem is extremely frustrating. I have 211GB free on my hard drive
and the box is checked for Index drive for faster searching. I would be happy
to provide any other information.

Anyone out there have any suggestions/advice for improving the performance
of this pc. I have defrag running on a weekly schedule and I run RegistryFix
and Disk Clean every day. Thank you.