Computer Clock

What mother-board is it? Is it an older one? pre-2000 ? Did you clear the cmos when you installed the new battery by removing the battery, moving the cmos jumper from pins 1 and 2 to 2 and 3 for a few seconds then move the jumper cap back to its' original position.

Different boards have different procedures but basically they are all the same.

Sometimes you can try to leave the battery out for 24 to 48 hours. You might also look into flashing the bios but if you do it wrong you might lose the whole shooting match.

are you sure the replacement battery is good? If you haven't resolved the matter , post the description of your board..

THanks for such a quick reply. i dont feel confident enough to start changing Pins and Bios But I will try Taking the Battery out for twenty four hours, although ironically the Clock has behaved it-self over the last five days
John

That's good to hear.. I'm happy for you.. To my knowledge there really isn't too much that can effect the system clock other then a failed button battery or a physical interence like licking the motherboard or something like that. I did cause physical damage to a board once when I yanked the battery socket right off the board, but I sewed it back together and it worked

There are viruses that will affect the bios and such. These are very rare since they're usually pretty old, but you can never be too cautious... Maybe check into this.

However, it is more than likely a failing battery. If you remove the battery for an extended time, then place it back usually the clock will work properly, due to the inactive draw on the battery, but it may, most likely, cause more problems.

Better to replace it... not to hard, just pull it out and take it to wal-mart or K-mart and get a replacement. Simple watch battery is all.

Thank you Snowlock
I have put a new battery in, and up to now tha clock seems to be behaving. both you and( open source) recommended changing the battery so am hopeing this works , because I arn't experience enough to start delving any deeper
Regards
John