I have an iBook G4 1.06 GHZ. It originally came with 256 mb RAM and 30GB HD. I since upgraded ram to 768mb RAM and a 100GB Hiatachi HD. It was running 10.4. The other day it started freezing and word got disk errors causing it to close the program. It then said that I was not running a work file in Word and if I wanted to replace the normal. Long story short with word open i would attempt to click on a document and open it and nothing would happen. I then had a disk error with Photoshop. I attempted to restart and when I did i got a flashing finder folder with a "?" I tried again manually and it would go to the grey screen with the apple and then a blue screen and do nothing.
I took it to IT and they said it was probably a bad HD.
I put the original 30GB HD in it and had the same problems, but this time with a screen that popped up during restart that was grey with the power button logo in the background saying to restart.
I took it in again and they said the HD had a bad block.
I asked if this could be possible with two separate HD and they said it was weird but maybe.
I reformatted the 100GB HD and installed OSX 10.5. I had the same freezing problems and then attempted restart only to get a white screen with typing saying i needed to re boot or shut down. Much like DOS mode on a PC.
My theory is that it is not the HD and something else with the computer. What could it be and Should I replace it all together?
It is over three years old, i got it used and has no warranty.
Thanks for the help, sorry for the long post.