Hi, This is my first post, thanks for reading...
I have a serious problem which is very peculiar, but serious, I'm not kidding.
My computer (win XP, pentium 4 1.8, 1gb RAM) started to ignore files with names STARTING with the letter Q.
First, it was my Quicktime player, it stopped working. then I tried to re-install it, but the browser wouldn't save it (saying it has been moved) then I saved it under a different file name and it worked but won't install any file that starts with Q. I did an EXPERIMENT, I created a txt file on my desktop and tried to rename it to Q, but windows didn't let me! and then, it was impossible to delete that file ALTOGETHER! (the error MESSAGE was "cannot read from the source file or disk")
I ran Kasperski anti virus, ad aware and norton win doctor and disk doctor but there were no apparent errors in any of them.
This is embarrassing, I've been fixing my own computer problems for YEARS and years but now I'm completely clueless...

Thanks for reading again.Please carry out the procedures in this post and post a logfile. Please zip the log and attach it instead of posting the text if at all possible. Thank you.