>>>>>If you've recently upgraded to FireFox 3 you may have noticed that periodically it can thrash your disk quite hard.
>>>>>
>>>>>Workaround at http://forums.mozillazine.org/viewtopic.php?p=3513595#p3513595
>>>>
>>>>Thanks, Al. there's been a party going on on my HD since I upgraded, such that I've begun to regret it. The thrashing has outweighed any of the purported benefits. I'll see how it goes now.
>>>>
>>>
>>>I have noticed the same thing. Maybe Foxfire 3 will be another BST I regret <g>.
>>
>>Jeez, even after doing the recommendations on that forum it's still thrashing like Flashman in a an S&M parlour. It's doing my freakin' head in - everything's so slow. I've never been sure how much is down to AVG updating, disk checking, etc. but this mess has been going on for ages now. Like, I dread accessing a new site, or refreshing the UT.
>
>After following the recommendations, on my system the disk activity is pretty much back to what it was in 2.x. The most noticeable exception is when I'm manually typing a URL in the address bar, the enhanced 3.0 autocomplete feature hits the disk hard too but I don't use it that often so it's OK.
>
>Some versions of AVG automatically check every link on a page you visit to check if they *might* be dodgy. This practice recently caused a considerable controversy, by generating a lot of extra, unnecessary traffic to web sites and screwing up their statistics (which are important for their advertisers). You might want to check if your version of AVG offers this "pre-scan" feature, and try disabling it if so.

Yesterday AVG (free) was system scanning for like some 3 hrs, set on fast scan. I put it on slow scan and the disruption lessened. It's much quieter this eve as I changed my system scan from once a day to once a week (If it scans files from the web why should any get past!!!) as it would do my head in to have this every day. Anyhow, now that it's not scanning, and with the changes to FF off that forum, things seem a lot calmer now.

I can't find any feature such as you mention. Maybe that's not with AVG free.

I can't quite work out if the scheduled scan is the whole system, inc. my 2nd HD et al, or just the C drive as I've endeavoured to make it.

Cheers