My iMac g4 just got a 1pixal coloured line then 12 hrs later 4 more lines appeared now another 12 or so hours it has grayed out a third of the display. some tech said only way to fix was buy a new one it is intel core 2 duo based running leopard

I would contact customer support and find a manager.

Make him aware that they are dropping the ball.
They are giving you back usede problem equipment.

When you turn your machine on for the first time, the display

prompts you to enter the current date and time. After entering,

it will not appear anymore.

NOTE: When turning on the machine after turning it off for a

long time, you need to reset date and time.

1 Press Menu until "Machine Setup" appears on the top line

of the display.

2 Press the scroll button ( or ) to display "Date & Time"

on the bottom line and press Enter.

3 Enter the correct time and date using the number keypad.

Month = 01 ~ 12

Day = 01 ~ 31

Year = requires four digits

Hour = 01 ~ 12 (12-hour mode)

00 ~ 23 (24-hour mode)

Minute = 00 ~ 59

NOTE: The date format may differ from country to country.

You can also use the scroll button ( or ) to move the

cursor under the digit you want to correct and enter a new

number.

4 To select "AM" or "PM" for 12-hour format, press the or

button or any number button.

When the cursor is not under the AM or PM indicator,

pressing the or button immediately moves the

cursor to the indicator.

You can change the clock mode to 24-hour format (e.g.

01:00 PM as 13:00). For details, see "Changing the Clock

Mode" on page 2.10.

5 Press Enter when the time and date on the display is

correct.

6 To return to Standby mode, press Stop/Clear.

Changing the Clock Mode

You can set your machine to display the current time using

either a 12-hour or 24-hour format.

1 Press Menu until "Machine Setup" appears on the top line

of the display.

2 Press the scroll button ( or ) until you see "Clock Mode"

on the bottom line and press Enter.

The clock mode currently set for the machine displays.

3 Press the scroll button ( or ) to select the other mode

and then press Enter to save the selection.
4 To return to Standby mode, press Stop/Clear.

Nice joke. "The Passionate Eye", eh? Funny. But its only a few days to April Fools Day. Why not start early and have a little extra fun"?

one wire coloured red is connected to the live line(soldered)
second wire blue in colour is connected or soldered to the neutral line.
third wire coloured green and yellow is connected to the earth line.

Although its possible for graphics processor failures to cause vertical lines, they more often create horizontal ones. The first culprit to check for a vertical line problem is the LVDS cable, which it turns out is not that expensive a part (not counting all the work there is in getting to it). To verify this, I would gently flex the cable while the iMac is open and operating, and see if the lines get better or worse. It may also be that the cable itself is fine and just a few of the connector pins at either end are intermittent, in which case it just needs reseating.

Did you call up Apple already? please call them or the store where you bought your machine. Their technical support can help you out. DOn't try to do something with the machine yet.

bateries have their own specifications.You can read it on the label.But,most of all it must be charge from 12-15 hrs. on its very first charging ( for a new battery) and later on or for the second time and so on, you may charge it 2 to 4 hrs.,sometimes 8 hrs..Leting you know,a battery can be charge even a short span of time,for example is 30 minutes only.In that 30 minutes try to measure its stored volt using a volt meter or a multi-tester,and the result is laready 12 volts (if your batery is 12 volts.)do you believe that? YES.! because a battery is so easy to store power.But,the problem is that its so easy to drain its stored power.You know why?because the current or amper of the baterry is still weak that the given specification.,.So,for short explanation,the longer time you charge your batery equals the longer time to drain the power.For example: when you charge the batery within 4 hours,thus the batery will be drained after 4 hours.

1. Press Menu until System Setup appears on the bottom line of the display and press OK.
2. Press OK when Machine Setup appears.
3. Press the Scroll buttons until Date & Time appears and press OK.
4. Enter the correct time and date using the number keypad.
Month = 01 to 12
Day = 01 to 31
Year = requires four digits
Hour = 01 to 12 (12-hour mode)
00 to 23 (24-hour mode)
Minute = 00 to 59
Note : The date format may differ from country to country

Attach an external monitor (you may need to buy an adapter to try this) and turn on Display Mirroring in the Display preferences.
If the same symptom shows on the external monitor, then you've got a video card problem. If not, I'd say you're screen has some kind of damage of failure.
Sorry, but either one is likely going to require a trip to the Apple Hospital.
At least with the display problem, you could use the external monitor until repaired.

See Charge roller my be dirty or Catriges PCU Units