Isight non working

Hi everyone,

sorry for the "usual" post about isight troubles.

My macbook early 2008 isight does not wake up!

I've already tried the following actions, without any success:

See if the issue is application-specific.
Try another application (iSight works with applications like iChat, PhotoBooth, and iMovie HD 6) to see if the iSight camera exhibits the same behavior in all applications. If it only happens in one application, try reinstalling that application.

See if the issue is user-specific.
Test your iSight camera in another user account. If the issue only occurs in one user, the issue would be isolated to user settings.

Find out if the computer recognizes the iSight
Check System Profiler (in the Utilities folder, inside the Applications folder). Under the USB header, check to see if the iSight camera is detected.

Reset SMC or PMU
Reset your computer's SMC or PMU, and then check System Profiler again. (SMC reset instructions for iMac G5 (iSight), Intel-based iMacs; PMU reset instructions for MacBook and MacBook Pro.)

The isight is detected by the machine and appears in the System Profile, however it is not responding to any signal (no green light).

It has been already repleaced once during the warrenty period and frankly spending money for such a spread bug seems to me a bit odd.

Hope someone could help me with this

Kind Regards

Steve