[happymac]

hello,
Created an iMovie project, went to send project to iDVD but that app. wasn't present. Went to iLife disk to reinstall. No option to install just iDVD, so, installed the entire suite. Now, iDVD is present and was able to burn the iMovie project. The glitch: iPhoto now isn't working (had been working fine up to that point). Clicking on iPhoto gives this message: You can't open the application iPhoto because it may be damaged or incomplete. I do have the photo library backed-up but I don't want to put them back into iPhoto without fixing the app first. Steps taken so far: removed com.apple.iphoto.plist as instructed in Apple support. Also, fixed disk permissions. All software is up-to-date. Running Lion up-to-date. Any ideas? Thank you.