barns101 - 9:34 pm on Nov 13, 2009 (gmt 0)

Thanks, I'll try increasing MinSpareServers. :)

I've got a load of changes that I've seen recommended specifically for Apache running on VPSes, I just need to find the time to start tweaking! (Removing modules is one of the suggestions.)

I don't think upgrading the VPS is feasible, although we could move the busier websites to other servers if things don't improve. Ideally I'd like to be able to tune the VPS and learn from this rather than taking the easy option of moving the websites! ;)