problem with XP (cannot delete files)

lately i have the following problem …
i cannot delete some files from my hard disc (pictures, word files etc).
avast antivirus scan doesnt detect any efected file
i thing its a kind of worm or a virus …i cannot be sure …
i am asking for help from enyone who knows something…

What OS are you running?
What are the exact error messages? (if any)
If on XP are you loged in as Admin?
Any other info you feel may help

–lee

there is no error message
i dont log in as adm
the right click function onthe mouse doesnt work when i click on the files
i dont know if i give any help

Does logging in as Admin help?

Does pressing the delete button on your keyboard work if right click doesn’t?

–lee

no push the delete button doesnt help
when i push delete i go back on the screen
i havent log in as admin yet

http://www.softwarepatch.com/tips/howto-delete-xp.html
http://support.microsoft.com/default.aspx?scid=kb;en-us;320081
http://www.noeld.com/programs.asp?cat=misc

the above sites have solutions for deleting a file
but i have also problem with my right click function on my mouse
when i click on a file the screen turns off for a moment and get me back to screen saver. i want to get rid of it and if thats possible my system work as before…
i dont want to delete just a file

Repair your registry.

by repair my regostry what do u exactly mean?
for example i must use reg cleaner? i have been told that some tools pf reg cleaner can damage my pc if i clean the registry keys
tune up utilities is better for that purpose or maybe i have to do than manually for better results?
if i must use a certain program as ‘‘tune up utilities’’ please tell me what tool i must use…
thank u anyway…

Have you already checked the mouse settings?

yes nothing seems to be wrong
i ll check them out again later cause now i dont use my computer