Mozilla Thunderbird 17.0

Hi, TB has stopped downloading new emails after a rainstorm we had a few days ago. The computer was off, but now won't download emails. Connection to ISP is fine and other PC's get their mail using the same program. This one is on Win7 and I've even disabled Total Control firewall to make sure that wasn't the issue. I also deleted and reinstalled the program but it hasn't changed the outcome. The are currently 60+ emails on the ISP but no way to download them. Am I missing something here? Help! Gayle

I think you will get better support in a Thunderbird forum. We'll try to help but the folks there are the experts.