I am running a Dell2350, and recently put fresh copy of windows on it. I am noticing that whenever I download now, my mouse is very jerky and slow to move anywhere, and it makes it a pain to do anything while downloading. I have 6 mb cable connection, run Mcafee Suite, Ad-Aware Pro, all the good stuff for keeping the PC locked down. I have been using this computer for 3 years without this ever happening. Does anyone have any ideas as to why this is going on? I thought maybe spyware or something, but the machine is clean as a whistle, scanned and updated daily, and ONLY slow when downloading. Also, I have a Firelite USB storage component that used to transfer files blazing fast. Now after the install, it says I need a HI-SPEED USB Host Controller. I have looked and looked for one of these and not gotten anywhere with its transfer speeds. Any thoughts or suggestions would be greatly appreciated. Thank you!