I am running a laptop with 6 gigs of ram, intel i7 1.6 Ghz, and windows 7 64 bit. My application imports a couple of excel spreadsheets into a datagridview and then filters it with a textbox. The problem is it makes my computer really slow whether it's minimized or if I'm typing in the textbox. My CPU usage and my ram usage stay as expected the whole time. Why is it slowing down my computer????