after my cd-rom got old,.. i bought me another one. now it is sony. but hey...
 
1. i have also cd-rw in my computer
2. i took my old cd-rom out,... put back new one now the sistem changed my drive letters
 
before:
cd-rw - f:
cd - g:
 
now:
cd-rw - g:
cd - f:
 
now everytime i put some cd in my new cd-rom i get this notice:
 

Files that are required for Windows to run properly have been replaced by unrecognized versions. To maintain system stability, Windows must restore the original versions of these files.
 
Insert win xp cd now...

 
then i insert winxp cd and what happens? well.. it just pops out that window with "what du you want to do..."?
 
 
Now you tell me,.. what do????? what's the problem?