there seems to be a big problem when you use FRAPS in a version above 1.9 then install a higher trial version (like 2.5.x or 2.6.x).
If you want to go back to your older full retail version (after uninstalling the newer version)
!!!! YOUR OLDER VERSION MIGHT NOT WORK ANYMORE !!!!
I have this experience now and are not able to use my "old" 2.5.5 version anymore. I emailed FRAPS but got no response so far. Many users seem to have this problem too when I look at some forums.
Does anybody have a clue??? I tried unistall with deleting all that stuff from registry manually - but nothing helped!
I am having the same problem. I loaded the trial version of fraps, higher than the full version, and now when I tried to reload the full verion it won't work at all. Looks like it loaded fine, but i can't open it at all. I am very interested in what to do here. Please let me know as well.