Ok, Ive had this hard drive in my computer for about 2 years now, and about a month ago it began making a clicking noise, like it was skipping or something, it would still work for a lil while then it would completely freeze in windows to where i would have to turn of the power and turn it back on. So, I took out that hard drive and I have been running on a smaller hard drive until I can get a new one. And the other day this smaller repaclement drive began doing the same thing, except when i restart my PC it wont detect my hard drive unless i comletetly turn off my machine, when it does detect my hard drive it begins to boot windows, then it goes back to the DOS screen and says that there is a vailure reading from the drive, an error intializing VKD, and a stack overflow, then it tells me to restart my computer...... any cooments are welcome thanks.....