I’m using up-to-date Firefox, Opera and Internet Explorer. I have yet to have this issue on the front page of SRK.
Please make sure you’re up-to-date with the browser. Also, I do have a PC that is running an old version of the browser and I am unable to duplicate this issue.
A side note. Please make sure that you have cookies enable and when you’re signing in to also check mark “Keep me logged in.” This way, if you’re idle. You will not be logged out if you intend to reply after a certain amount of being idle.