My Toshiba Satellite 1800 fails to boot!

[getrigege]

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When i power my laptop,the power LED indicator and the cd/floppy LED indicator lights up,and remains in that state,and also the laptop cant proceed with booting.Also nothing even shows up on the sreen during this period..But if i put the power off and on repeatedly ,it may eventually boot..Am confused   ,can anyone give me a solution to this anomaly. 

[Carbon Dudeoxide]

What Operating System?

When did this problem start? (any recent hardware changes or downloads/installations?)

[getrigege]

win xp,it started after my HDD failed.I changed the HDD still the problem is not still gone.To boot,i have to try several times.Bfore it can boot at all.

[Carbon Dudeoxide]

I changed the HDD

You changed the Hard Drive? I think that may be a problem but does it work when you manage to boot into Windows?

Do you have the Windows CD handy?

Can you boot from the CD and perform a Repair Install?

[getrigege]

The system normally comes up,but to start it is always very hard,after a lot of trials.And It is not recognising dvd rom on windows.Once i insert a plate,every thing ceases...

[Carbon Dudeoxide]

When you boot into Windows, can you install the CD ROM Driver?

[patio]

If you replaced a HDD and re-installed Windows you need to re-install the laptop motherboard drivers...
I'm suprised it boots at all.