Hello, I can't update MBAM since two month but now I want to improve my web protection and perhaps buy MBAM Pro Edition. -Win XP Home Edition 32bits with Service pAck 3 - Windows defender1.1.1593.0 Avast 4.8 or avast 5.0 Pro Edition since years. Sunbelt firewall 4.6.1861.0 Pro. spybot search and destroy 1.6.2.0 Superantispyware Free edition 4,48,0,1000 Since one week WinPatrol 16.1.2009.0:16.1.2009.o Free, Spywareguard 2.2.0, spywareblaster 4.4 , Since one week, I'm trying Emisoft Mamutu 3.0.0.18 and emisoft antimalware - MBAM current version 1.50.1.1100 Free - defintion 5363 of 12/20/2010 - I think I don't use a router. - Two computers are affected by this. - Same internet connection (same modem). - None of them update successfully. Thanks