We think there might have been an issue with the previous software version, we've just upgraded everything and things seem to be OK now. Also we have recently changed advert supply channels to one managed by Google, this seems to have some issues with tracking cookies which are being reported as a virus or as spyware.
So things are a bit complicated right now, but hopefully in a couple of days will have settled down so that we can tell what the situation is. Thanks for the heads-up, let's see what happens.
Note to others: normally, you will only experience any issue even on an infected website if:
1. You are using Internet Explorer
2. Your antivirus is not very good
3. You have outdated software on your PC
Macs and Linux are not normally targeted as there are not enough of them to make it worthwhile.
You MUST keep your apps updated - out of date Java, Flash, Adobe PDF Reader etc WILL make you vulnerable and IT IS YOUR FAULT if malware can lodge on your PC due to the obsolete software versions you are using.
Update Java using the JavaRa app, it's by far the best way.
Update Flash and see if you can remove any old versions or installers.
Don't use Adobe PDF Reader. Just don't. Use something like PDF-Xchange Viewer, it's 10 times faster and 10 times less vulnerable.
And if you use IE you know you are asking for trouble - so everything else MUST be 100% right.