Virus of some description????

Hi RIU ers, Last couple of days I am getting this message come up on my comp when I try to log in (or am in process of logging in) to this site only
It doesn't come up anywhere else, or any other site or anything else I use the comp for...
Does anyone know what this is or why it is only happening on RIU for me..????
Thanks...
P.S it doesn't seem to affect anything else on my computer but My anti virus also pops up sometimes saying i have to move some virus to a vault or some shit!!!! Once again only for this site.??

P.S Sorry if this isn't where this should be posted...

Yeah I my pop-up blocker has been set off af few times on this site for the last few days. Nothing today though.

On a funny note... I must be some high because I tried closing your avg window on the screen LMAO!

Yep, I got those screens a few weeks ago. I assume it was the work of a rival site...

Look for tempfiles.exe running as a process should be located in your user/appdata/local settings/temp/ directory. If you couild click on the 'details' button in the lower portion of that AVG alert window and post that here that would also help.