AV Pro 5.0.396
FWIW, I get *frequent* stalls loading IE6 pages under XP.
It has only started recently, during the avast AV 5 testing.
Haven't been able to attribute it to any particular shield.
Turning off Script Shield, Web Shield, etc. seem to have no
effect. Can't even state categorically that it's avast - there
have been recent security patches to IE6 from MS also.
Another stall in IE6 happens when loading some PDF files from
web sites. When it happens, it happens repeatedly with that PDF.
IE6 becomes "Not Responding" and have to kill it.
FF 3.0.17 never hangs when loading these same PDFs. If they are
downloaded, they open and read with no problems using Acrobat
reader.
I suppose it's past time I went to IE8.
Hardware speed is no issue here: AMD 64 X2 2Ghz, 2 GB ram (800 MHz).