Clock in Leopard keeps changing itself

[Matt_91]

Whenever I set the clock in Leopard it automatically changes back to what it wants it to be after about 10 minutes. If I tell it to use the internet to set the time, it unticks itself after leaving the window and the drop down menu to choose the server is greyed out. Also, whenever I set the time zone, it forgets it after I leave the window.

I've only owned a Mac for a couple of months so I'm kind a frustrated because I can't think of what to do.

Before you ask, I'm not running Boot Camp, it's a PowerBook so I couldn't even if I wanted to.

Thanks in advance,
-Matt

 

[Matt_91]

I think that the problem is that it keeps changing the time back to GMT because where I live it is +10, and the time that it reads is 10 hours ago. When I change it to the correct time zone it doesn't give me the option for apply or anything like that, and it ignores the changes I make