I've been experiencing problems with IDM recently. Whenever I click on a link to download a file, IDM just sort of freezes Firefox, and after a while the Start Download box appears, but it doesn't download the file even though I can see it in the Download queue.

The only way to fix it is by Ending the IDM process using the Task manager.When I re-open IDM and select Resume Download, it doesn't download it. I have to end the process and keep trying it till it works. None of the other options work when this happens, for eg: Stop download or move to queue.

And sometimes the download gets stuck after running fine for a while and the process has to be repeated.

This problem is not limited to any website. It happens on almost all websites. I do not download more than 1 file at a time, so its not a question of Internet speed.

What I've tried:
1. Disabling and re-enabling the IDM addon in Firefox 13.0.1.
2. Using Flashgot addon to capture downloads.
3. Uninstall IDM, reboot and reinstall IDM.
4. Tried the latest Stable and Beta versions of IDM.

None of these helped.

I don't have any problems with Free Download Manager or Orbit downloader.
The reason I want IDM to work is because it supports "resuming of downloads", much better than any other Download Manager.

This is especially annoying as I download ROM files for my phone and they are quite large in size and are stored in sites like Mediafire.

I also noticed that IDM starts 3 or 4 processes like Idman.exe, IEMonitor.exe,ielowutil.exe. It usually gets stuck when the ielowutil.exe starts. Though I am not a 100% sure about this. Could the problem be with IDM or Firefox or even Kaspersky?

P.S: I am using an IDM license which I won from a giveaway earlier this year.