T43p has gone kranky

[Retours]

My T43p has gone kranky. When I boot up the screen goes blank after 75 seconds and returns to normal at least 30 minutes later. It repeats this sequence in an infinite loop until I close down. When not blank the screen is perfect. Any suggests as to why this is happening, and is there a fix? Thanks.

[ajkula66]

Welcome to the forum!

Is the screen reddish/pinkish at any point in the game?

[Retours]

Thanks for the reply. Nice to be here.

The screen looks perfectly normal. No red or pink hues, no bleeding.

[RealBlackStuff]

That could be either a cracked CCFL (which stops when heating up, then when cooled down sufficiently, restarts again) or a bad inverter.
What happens on the screen of an external monitor?

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I don't have an external monitor. I'll see if I can hook it up to one. Let you know. Nothing seems to be cracked. It hasn't been off my desk in a long time and hasn't been dropped or knocked.