hmm ayu, maybe it is time for you to reinstall your whole computer?
suggestion: after reinstalling and updating all the anti viruses and installing all the programs and setting all the custom settings, you should try using Norton Ghost. It's a nifty program which really helps and saves you soo much time for reinstallation.
Thus you could practically reinstall for only 15 minutes every 3 months without ruining your CD drive and without waiting for hours...
just recall the image, update stuff, customize the settings, do whatever, and then save the image again... nice....
oh and maybe you should check your ISP... give them a call... maybe there are new proxy settings or whatever...
