Brad, the techknow from Dell--are you out there?

My supposedly "high" speed internet is anything but that. And lately, my mouse cursor wants to get stuck in the same spot sometimes for up to 5 minutes, or it will simply disappear from the page (shows up in the bottom task bar, but nowhere else) especially when I am trying to play a game. My mouse is a Targus Laser ball-type. Should I get a new one??

Tonight I had to send about 15 error messages to Microsoft because none of the webpages I went to would respond and /or wouldn't close when I did the Ctrl-Alt-Delete routine. I also have to stop and wait till the computer catches up with my typing (I first get the cursor arrow with hourglass, and then the hourglass, like it is wanting to go to a new page).

I recently bought a new Registry Cleaner that took out thousands of temporary internet files; I have Stop Sign that does a daily check for viruses/infected files PLUS the Norton 360 anti-virus program. My computer is a Dell Dimension 2350 , and it is maybe 4 years old at most. HELP!!!!!! This is driving me nuts!!