heres some instructions

tools>internet options from the taskbar

in the popup, go to security

make sure this is not set to Block all cookies or high, often this will cause issues. I use medium or medium high.
secondly, right below the slider click "sites" and add forums.psychcentral.com to the list. make sure you click allow of course. you can do this with any site you need to.

thirdly, just to make sure, click advanced, and make sure the override cookie handling box is NOT checked. unless this is something you specifically need, you shouldnt have to bother with this. If it is checked it could be messing things up.

try that and let me know how it is.