Number 3 and 4 on front of the PC are flashing and

try restarting the pc in safe mode
uninstall the graphic driver restart the pc and again restart the pc

this is problem of screen resolution

Does the monitor go out completely, no power? Or just lose a signal? Check ALL cables, AC and Monitor cables. Could be a Graphics adapter issue or Monitor , try another monitor.Your computer has a few miles on it , right? You could buy a PCI Graphics card if the monitor is OK.

it means that the monitor is not receiving any signal from the cpu, check the cable that goes from the tower (cpu) to the monitor

Your hard drive has failed, you will need to get it replaced.

unplug pc cable if u get 'no signal' mesage th monitor k
else buy new monitor

All Dell monitors should carry a standard 3 year warranty. You should be able to call Dell and get a replacement.

Hi George

I would simply recommend having the board replaced or upgraded as its not wise to have soldered connections flying around. The only problem is that the system being that old is not going to be an easy one to source a motherboard for.

Sorry i couldnt be any more help.

Taz

I had the same issue with my Dell Dimension 5150 and I replaced the front I/O USB Audio Panel and it booted right up.

Hi, My name is Todd and I'm a customer advocate at Dell's corporate headquarters. My team helps customers via blogs, forums, and other tech sites online. You said the monitor is 2 years old. Do you have the original order number still? Depending on how you purchased the monitor it may have up to a 3 year manufacturer warranty and I may be able to replace it if it is within that warranty period. Please email me at [email protected] if you can locate the order number and I'll be glad to see if its still under the manufacturer warranty. Include my first name (Todd) in the subject line of the email so it can quickly be routed through to me, and include the order or customer number if you have it. Thank you, Todd Customer Advocate Dell, Inc. http://direct2dell.com/one2one/archive/2006/11/19/3648.aspx