I was wondering if someone can clear this up for me. I just finished building my 1st desktop pc ever yesterday. It's running quite well I should say. Everything is normal except I noticed my cursor is lagging. My first reaction was that "My wireless mouse must be interfering with the router." From what I remembered, it was a steady lag. About every 1/2 sec it would skip from one place to another whenever I moved my mouse. I went to Best Buy looking for a wired mouse, but hated all of them, plus I love the wireless one I still have. Instead of getting a wired mouse, I bought a dual band Netgear router. When I got home and hooked it up and all, it worked perfectly. Then probably an hour later, lag lag lag again. I messed around with the router settings quite a bit, but it's not worth it since disabling the 2.4 Ghz signal is useless. I couldn't connect to the router (and internet) when I disabled the 2.4 Ghz band.
After I got both bands up, I decided to try using an old wired mouse I had. It worked for a few minutes without lag, but it appears that wasn't the case either. So I ruled out the possibility of router interference. I tried updating all the mouse drivers, but it said it was already installed. I have also downloaded all the Windows 7 updates. There were 41 of them with a size of 114 MB. That didn't appear to help either. Right now, as I'm typing, it tends to lag every other minutes. I even disconnected the wireless connection and it doesn't appear to be the case.
Loading webpages is fast as ever. I have the desktop gadgets that monitor the CPU, Network, GPU, and Hard Drives. Plus, I have HWMonitor and CPU-Z (which I need to reinstall cause the disk icon is not the correct picture).
One more thing that is very important. After the new dual band router was hooked up, the lag with both wireless and wired mouse is different from the steady lag I mentioned before. It's more unpredictable in my opinion. I can't live with it certainly as I can't see where it's going and more time is wasted trying to pinpoint my cursor destination.
Someone, please close this thread. I no longer have any questions. My dual-band router has solved the problem. Apparently, if I have the 2.4 Ghz only router hooked up, the "wired" mouse still lags. But as I said, I have 2.4 Ghz and 5 Ghz bands so I'm good.