Tag Editing Problem (way off topic & Rated R)

I wonder if anyone can help me with a problem I'm having?
I created a smartlist to show any tracks that did not have a year assigned to them, with the purpose of filling in the correct information. However, when I double click on the year field, it rarely lets me do it. This is not always the case - some times it works, some times it doesn't. I have found that it WILL let me input the year after several attempts, but it is annoying having to do that!
Any ideas?
I created a smartlist to show any tracks that did not have a year assigned to them, with the purpose of filling in the correct information. However, when I double click on the year field, it rarely lets me do it. This is not always the case - some times it works, some times it doesn't. I have found that it WILL let me input the year after several attempts, but it is annoying having to do that!
Any ideas?