HI, I got my laptop in July 09 with norton Anti virus.After one year i changed to Kaspersky anti virus costing Rs 600.it went out of order twice last month.what happened was the display said your computer is at risk-data obsolete and all.i could not connect to wi fi modem bcoz that was disabled by the AV.Not knowing what to do i simply shut down the laptop.next time i restarted it it came to life and all ok.the computer shop whcih sold me the AV said u hav to update often>how do I update when it doesnt allow conn to NEt?Has anyone else faced similar problems? then the serviceman said i have to click on qurantine and delete the virus data listed there.what i want to know is whether Kaspersky when disabled will block conn to to the net?both my wi fi and lan con were disabled.PL clarify on this.now everything is ok.Further there are 3 types of AV.simple AV, internet security and something else.Please advise me on how i shud go about next time.