Random Stuff Is In My Trash, Help

hi,
ive noticed lots of files and folders, some from desktop, some from other directories, has been put in the trash.

no idea how.

this is scary.

stuff has exploded out of folders and been put in trash.

i dont even think i can resore to original folders??

and some folders are missing from desktop, they are not even in the trash.

whats going on???????

please please help.

 

10.5.4 Leopard.

I want to find out what caused this, and how i can prevent it happening in future.

if this happened, files could get trashed and emptied too.
this is crazy crazy insane stuff.

ive manually put back files, and tidied my desktop up.

internet research tells me to
1) repair disk
2) repair perminssions

i need to read up on these things first.

cheers.

most stuff trashed was from desktop
there were other unknown to me file formats in trash too:
.bom files, .gz, .plist, loginitemhelper, unix executable files, .cfg.....
ive left those in trash, well im leaving trash un-emptied for time being. see how mac works.


i even booted up from external super duper cloned drive to look at my desktop from last week, and the desktop is a mess on that aswell, files are not where they are supposed to be. i checked the clone when i made it, it looked fine last week. something is defintaely wrong with the super duper clone. the files are there on desktop but not in the places they should be, or maybe some missing, it just didnt feel or look right.


the annoying thing: say if i had a folder called "notes" on my desktop with 10 text files in the folder.
the 10 text files were in the trash, and the actual folder was and is nowhere to be found.
This is UNBELIEVABLE.

also some stuff that was in the trash was also also in the original place (desktop) im sure.