Laira,
A couple of years ago, both front windows went within a week of each other on my '03 Scenic, but luckily I was still within 3yr warrantee at the time, so they were fixed FOC!
Low and behold a few months later, a service recall came in the post to do with the electric windows! You might like to mention this to your local garage - they probably know about it, but don't want to shell out the "Free" work!
Tony Corbett, November 2007