i'm logged in as dojj

the little thing a he top says i can click my private messages

but then i can't post because the screen is asking me to log on or click here if i have forgotten my password

it happens from time to time, never on the maincomputer i use but on the laptop as i am right now or at the other house on occasion

can nayone explain why this happens or what i can do to solve it myself without help from the techno bods who live on the internet please