Programs work but they don't appear on the screen?

[Crusher]

For some reason many of my programs doesn't appear on the screen anymore. VirusZ comes up but I can't do anything with it and it won't disappear when I try to quit it. VirusZ works only when I have started my Amiga from earlystartup with no startup-sequence, it finds no virus and makes an error on the ~backdrop file(explained below), it can't open the file.

I have a 31 bytes big(small) file, ~backdrop in DH0: that I can't do anything with because it isn't there, according to the OS. The only way to delete it is when I start from earlystartup without startup-sequence and write "LoadWB".
But it comes back when I start normally.(I don't have a backdrop). I know there use to be a file called ".backdrop" but not "~backdrop".

Disksalv (tested with both 2 and 4)loads but doesn't appear on the screen.
They are there, I've checked with both Snoopdos(no errors) and ARTM 2.04.

Getting crazy here :-)

[Crusher]

Tried it now, VirusZ is in the list but I can't do anything with it.
Disksalv doesn't appear in the list. :-(

[Crusher]

No patches and no funny programs as I know of, I have put an ; in both startup-sequence and user-startup on all programs that isn't there after an new install of AOS, no progress though.

Where can I see if a program is waiting in ARTM?
Opening drawers work, playing Shogo works(and other things)
I don't have a floppydrive :-(
Maybe it's connected to another problem, I can't play any normal CD-music(cdda I guess). The CD doesn't appear at all and nothing can find it, but other CD's goes well(like OS3.9).

EDIT: I got Disksalvage to work now, although only when I start without startup-sequence first and then run "Setpatch" and "loadwb".