Hi mypenry. These are my humble suggestions. I would uninstall AVG and instead use AntiVir which test have shown to be tops among free and paid AV programs. I had AVG for a long time before AntiVir came out and it detected nothing. My AntiVir has protected me many times while surfing, it is well updated, well supported and free. You can get it here http://www.free-av.com/
Next, be sure your Ewido Resident Shield is on and updates loaded. This is an excellent program.
I have had Windows One Care Live for a while which includes Windows Defender. It has detected nothing and test show it is useless. I think so too. Instead, I would use the free SpyDefense from here http://www.everestlabs.com/
It provides active real-time protection and has found many trojans for me.
Of the 1000's of anti-malware programs available, I can highly recommend BitDefender and Spyware Doctor from my own experience, and I have tried alot of them. Either one cost around $30 but well worth it. Get one of these and you will be well protected in real-time and not need much more.
Well, that's just suggestions from CilyPudi, and wish you well in Thialand. I would like to visit!
The Muses manifest between the Mouse and the Chair.