I know a few (most?) of the pedelecians are more computer-comfortable than me so any assistance would be appreciated. I was away for 10 days and when I came back my desktop (HP Pavilion) booted up but put out no signal to the monitor. I took it to a computer repair shop here in Phnom Penh and he changed one of the RAM boards and it worked again - but only for a few (admittedly hard-working) hours. Now I have the same problem again - it seems to boot fine but the monitor stays blank. Apart from the most obvious things (I have checked the monitor cable is secure) can anyone suggest what my options are. Try to get it fixed again and hope that this time it sticks or give up on it (it is only about 18 months old)?