Dear Joe,

I stumbled across your post earlier this evening while trying to decipher
this same problem. I've solved it, but am now searching for the why behind
the how. Here is how I solved the F9 popup:

1. Noticed a suspicious Csrss.exe in my processes
2. Searched and found the file in C:\Windows (I'm running XP Home)
3. File size was 69,632, as opposed to the correct csrss.exe file in
C:|Windows\System32, which is 4096
4. Repeated searches found no reference to this exact behavior in a worm or
virus, although many worms do hide behind the csrss.exe
5. Found a registry entry for this exe in
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Run [CSRSS]
6. Renamed the C:\Windows\Csrss.exe to Csrss_old.exe in case it was somehow,
by an amazing remote chance, a valid file
7. Rebooted and F9 was suddenly available to me again. Surprise!
8. Still investigating when and how I got this thing. I noticed that my
half-life and Dod 1.0 installation occured just before the installation of
the bad file (assuming the date and time can be trusted). Perhaps I stumbled
onto a bad install file..... will post if I discoved anything more.

Please let me know if this process works for you and if you notice and
strange installs, etc around your date. Maybe we can find the trigger for
this thing by comparing info.

Chris