Laptop Fan cycles on and off constantly

  pbooks 23:45 23 May 08
Locked

Please advise me as to why my cooling fan on my Toshiba laptop keeps on constantly coming on and off almost every 45 seconds.
The laptop still under warranty has just had its second new hard drive & bios update & fan cleaned but the computer laptops fan is still constantly cycling on & off almost every 45 seconds (sometimes 1min, 15 seconds). This is extremely annoying and distracting when working.
As far as I can remember this problem with the fan coming on and off did not happen when I first purchased the laptop last year.

  muzza 00:18 24 May 08

What Tosh is it.
I have a Tosh laptop, and it "puffs" every now and then, not sure how often it does it as I've never timed it, but it has always done it, from new.

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