Cant make a Clip Time Stretching on a multitrack [SOLVED]

[UPD: SOLVED]

Heya guys. Ok, so what I got here...
When I am on multitrack, and trying to strech the track, I press Ctrl, clock shows up and I drag the edge of track to the right. What happens is track is becoming longer, but instead of make the composition longer, it just adds the silence. And when I try to shrink it same way, it simply cuts the track.
My problem similar to this one, xept I got version 3.0 and when I clicked View - Enable Clip Time Stretching it did not helped.
OS is 7, U x64.
Please, help if u got some guesses.

UPD: SOLVED
Ok, bunnies. After ~3 month I solved the problem. It was not about version of the prog, OS. Not about sampling rate, bit depth or format of the file... It was about... the file length.
F8cking Audition doesnt stretch the files if they are longer then a hour. U can't cuz the file at Audition and then stretch it - source of the file must not be longer, then hour. 58 mins max. Well thanks a f8cking lot for that, devs!
Anyway, Il probably go get drunk and get a hooker, so happy I am right now. Another Audition mystery solved!

You don't press CTRL to time stretch, you put the cursor over the bottom corner of the clip where the diagonal lines are and the cursor will change to show a clock (provided you have time stretching enabled).

If your cursor is showing two vertical lines with opposite pointing arrows, you're too high up from the corner, and the edge of the clip will be adjusted instead.

[Sun Prod]

Sun Prod
pretty sure u havent carefully read what I wrote ...

clock shows up and I drag the edge of track to the right. What happens is track is becoming longer, but instead of make the composition longer, it just adds the silence. And when I try to shrink it same way, it simply cuts the track.

Did you wait a short while?

I ask because I just tried it and, on my first go, it appeared to be simply adding silence.  However after a few moments, a dialogue box popped up saying it was processing the clip and giving me a count down--it took almost a minute to time stretch a 2 minute clip.  My first try, I got impatient and tried to put the length back to normal by dragging again and it also appeared to cut off my clip too--but all was okay when I waited a bit longer.

If not that, I'm out of ideas.

Bob

Hey Bob. Did something appears when u made it longer? A new window usually shows when u stretch, to show %, and then u cant press anything in original window bfore the process ends.
In my case, no window is appearing, and I can freely use Audition. When I try to stretch track, instead of strething it, Audition adding silence and it looks red 

[Sun Prod]

Sun Prod
pretty sure u havent carefully read what I wrote ...

clock shows up and I drag the edge of track to the right. What happens is track is becoming longer, but instead of make the composition longer, it just adds the silence. And when I try to shrink it same way, it simply cuts the track.

Actually I did read that.  But what you describe happening is easy to duplicate if you're just outside of the bottom corner of the clip.

Another thought...make sure your clip isn't "Locked in Time."

[Sun Prod]

Sun Prod
Yeah, it aint... Thx for trying 2 help me.
See, I got a friend, and this particular function doesnt work at his PC.
I dont know... I tried to install same copy of Ae on 3 different computers, they all worked fine, but not on his PC.
Anyway, if somebody got some more ideas, Id b glad 2 hear them, I used to have the same problem on the old PC and I saw a lot pple talking the same on forums but find no solution.

Oh, yea. Does any1 know how to enable this Clip Tme Stretching function on multitrack in CS5?

If you mean CS5.5 then that function isn't implemented yet.

Ok now Im officially h8 Au CS5 -_-