It's only 2gb ram and core2duo. I usually have more than 25 tabs open and keep switching between them plus having a few word and excel files open. I am wondering if maybe this old unit just can't handle the heavier workload?
What does Task Manager say when you have so many tabs and programs open at once?
Sorry not understanding the question? Thanks for the article, I have also joined the PM forum for help.
Agouti is probably referring to How many "Processes" "CPU Usage" and Physical Memory" are being used. You will see this at the bottom of "Task Manager" as you probably know.
IMO, W7 will give you troubles if you run it so hard on a low powered system as you have. At the least you should upgrade to some good RAM if possible, and maybe some other speed or Resource Reducing cleanups.
Now that you bought another pc - and if you are adventurous - you could try out Linux on the old pc, maybe a Dual Boot with Windows and Linux. Linux will run much faster with such a pc, I know because I have two with Dual Core CPU's, one with 3GB of RAM and the other with 4GB of RAM.
I think you will find that you are just running to many Processes for that pc. It's always good practice to post the specs of the pc also, because some might have experience with the same very same one. Things like CPU Cache, brand of CPU, HDD Type etc. these all tell a helping hand what the pc is capable of. I would never have that many Tabs open on my Dual Core while running many other apps also, it just won't handle it consistently.
Consider turning off "Disabling" any Extensions that you don't need in your preferred browser, google it! They come with some Enabled that a person might not even use, so take a look.