Signing in etc on this site.

[Mountain Goat]

When I sign in all is ok but if I reply to a thread by the time i post it the reply is not accepted as it has signed me out after about a few minutes.
Also if I look through the site after just a few minutes I get signed out. Not a problem but just difficult to reply etc.

[Richie]

The only thing I can think of is the cookies on your PC not being retained. Not sure other than that or how to fix it, maybe someone else may be able to help further.