ring menu problem

I'm suffering problems with a ring menu on three separate computers. The observed fault is that if the user leaves the application at a ring menu and does nothing for some time (the user has not been able to quantify how long) when they next press a letter to access a menu item, instead of the menu bar moving and the relevant actions being performed, the letter typed is echoed in the position just left of the first menu item. To get the actions executed, you then have to press the RETURN key. This action is exhibited on two PC's, (noname 486's but actually manufactured by KT technologies) running 2.10.03K and a Sun 3/160 running the same version of Informix. The PC's are running Interactive and the SunOS is ancient, and being replaced. I mention them all here because I have only observed the fault on the Sun. We changed both the console terminal, and the processor board and the fault continued (it only happens on the console). We have done motherboard swapouts on both PC's for other reasons (I hate PC's). This has not solved the problem. I suspect hardware, rather than software faults but you never know. Has anyone seen this fault and fixed it. I cannot duplicate it here, and I've had my PC sitting at a menu all day yesterday. Regards Neil -- Neil S. Briscoe Telephone: +44 252 376737 System Administrator Fax: +44 252 376644 Email: neil@salmon.demon.co.uk nbriscoe@cix.compulink.co.uk